Renames conda and venv Python environment to env_isaaclab (#188)

# Description

This PR renames conda and venv Python environment to `env_isaaclab`
Why? Following installation steps on Windows raise the following issue
because for Windows `isaaclab` (Python env) and `IsaacLab` (the repo) is
the same name. Also, this is more coherent with Isaac Sim's Python
environment names
(https://docs.omniverse.nvidia.com/isaacsim/latest/installation/install_python.html#installation-using-pip)


```
C:\Users\horde\Documents>dir
 Directory of C:\Users\horde\Documents

12/16/2024  02:50 PM    <DIR>          .
12/16/2024  02:50 PM    <DIR>          ..
12/13/2024  07:41 AM    <DIR>          isaaclab
               0 File(s)              0 bytes
               3 Dir(s)  172,079,185,920 bytes free

C:\Users\horde\Documents>git clone https://github.com/isaac-sim/IsaacLab.git
fatal: destination path 'IsaacLab' already exists and is not an empty directory.
```

docs/source/setup/installation/binaries_installation.rst

@@ -204,7 +204,7 @@ Clone the Isaac Lab repository into your workspace:
                -o, --docker         Run the docker container helper script (docker/container.sh).
                -v, --vscode         Generate the VSCode settings file from template.
                -d, --docs           Build the documentation from source using sphinx.
-               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'.
+               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'.
 
       .. tab-item:: :icon:`fa-brands fa-windows` Windows
          :sync: windows
@@ -224,7 +224,7 @@ Clone the Isaac Lab repository into your workspace:
                -t, --test           Run all python unittest tests.
                -v, --vscode         Generate the VSCode settings file from template.
                -d, --docs           Build the documentation from source using sphinx.
-               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'.
+               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'.
 
 
 Creating the Isaac Sim Symbolic Link
@@ -289,7 +289,7 @@ use the following command:
 
       .. code:: bash
 
-         # Option 1: Default name for conda environment is 'isaaclab'
+         # Option 1: Default name for conda environment is 'env_isaaclab'
          ./isaaclab.sh --conda  # or "./isaaclab.sh -c"
          # Option 2: Custom name for conda environment
          ./isaaclab.sh --conda my_env  # or "./isaaclab.sh -c my_env"
@@ -299,7 +299,7 @@ use the following command:
 
       .. code:: batch
 
-         :: Option 1: Default name for conda environment is 'isaaclab'
+         :: Option 1: Default name for conda environment is 'env_isaaclab'
          isaaclab.bat --conda  :: or "isaaclab.bat -c"
          :: Option 2: Custom name for conda environment
          isaaclab.bat --conda my_env  :: or "isaaclab.bat -c my_env"
@@ -310,7 +310,7 @@ activate the environment before running any scripts. For example:
 
 .. code:: bash
 
-   conda activate isaaclab  # or "conda activate my_env"
+   conda activate env_isaaclab  # or "conda activate my_env"
 
 Once you are in the virtual environment, you do not need to use ``./isaaclab.sh -p`` / ``isaaclab.bat -p``
 to run python scripts. You can use the default python executable in your environment

docs/source/setup/installation/pip_installation.rst

@@ -38,8 +38,8 @@ compatibility issues with some Linux distributions. If you encounter any issues,
 
          .. code-block:: bash
 
-            conda create -n isaaclab python=3.10
-            conda activate isaaclab
+            conda create -n env_isaaclab python=3.10
+            conda activate env_isaaclab
 
       .. tab-item:: venv environment
 
@@ -51,20 +51,20 @@ compatibility issues with some Linux distributions. If you encounter any issues,
 
                .. code-block:: bash
 
-                  # create a virtual environment named isaaclab with python3.10
-                  python3.10 -m venv isaaclab
+                  # create a virtual environment named env_isaaclab with python3.10
+                  python3.10 -m venv env_isaaclab
                   # activate the virtual environment
-                  source isaaclab/bin/activate
+                  source env_isaaclab/bin/activate
 
             .. tab-item:: :icon:`fa-brands fa-windows` Windows
                :sync: windows
 
                .. code-block:: batch
 
-                  # create a virtual environment named isaaclab with python3.10
-                  python3.10 -m venv isaaclab
+                  # create a virtual environment named env_isaaclab with python3.10
+                  python3.10 -m venv env_isaaclab
                   # activate the virtual environment
-                  isaaclab\Scripts\activate
+                  env_isaaclab\Scripts\activate
 
 
 -  Next, install a CUDA-enabled PyTorch 2.4.0 build based on the CUDA version available on your system. This step is optional for Linux, but required for Windows to ensure a CUDA-compatible version of PyTorch is installed.
@@ -204,7 +204,7 @@ Clone the Isaac Lab repository into your workspace:
                -o, --docker         Run the docker container helper script (docker/container.sh).
                -v, --vscode         Generate the VSCode settings file from template.
                -d, --docs           Build the documentation from source using sphinx.
-               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'.
+               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'.
 
       .. tab-item:: :icon:`fa-brands fa-windows` Windows
          :sync: windows
@@ -224,7 +224,7 @@ Clone the Isaac Lab repository into your workspace:
                -t, --test           Run all python unittest tests.
                -v, --vscode         Generate the VSCode settings file from template.
                -d, --docs           Build the documentation from source using sphinx.
-               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'.
+               -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'.
 
 Installation
 ~~~~~~~~~~~~

isaaclab.bat

@@ -247,7 +247,7 @@ echo     -s, --sim            Run the simulator executable (isaac-sim.bat) provi
 echo     -t, --test           Run all python unittest tests.
 echo     -v, --vscode         Generate the VSCode settings file from template.
 echo     -d, --docs           Build the documentation from source using sphinx.
-echo     -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'.
+echo     -c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'.
 echo.
 goto :eof
 
@@ -328,8 +328,8 @@ if "%arg%"=="-i" (
         set conda_env_name=%2
         shift
     ) else (
-        echo [INFO] Using default conda environment name: isaaclab
-        set conda_env_name=isaaclab
+        echo [INFO] Using default conda environment name: env_isaaclab
+        set conda_env_name=env_isaaclab
     )
     call :setup_conda_env %conda_env_name%
     shift
@@ -340,8 +340,8 @@ if "%arg%"=="-i" (
         set conda_env_name=%2
         shift
     ) else (
-        echo [INFO] Using default conda environment name: isaaclab
-        set conda_env_name=isaaclab
+        echo [INFO] Using default conda environment name: env_isaaclab
+        set conda_env_name=env_isaaclab
     )
     call :setup_conda_env %conda_env_name%
     shift

isaaclab.sh

@@ -241,7 +241,7 @@ print_help () {
     echo -e "\t-o, --docker         Run the docker container helper script (docker/container.sh)."
     echo -e "\t-v, --vscode         Generate the VSCode settings file from template."
     echo -e "\t-d, --docs           Build the documentation from source using sphinx."
-    echo -e "\t-c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'isaaclab'."
+    echo -e "\t-c, --conda [NAME]   Create the conda environment for Isaac Lab. Default name is 'env_isaaclab'."
     echo -e "\n" >&2
 }
 
@@ -307,8 +307,8 @@ while [[ $# -gt 0 ]]; do
         -c|--conda)
             # use default name if not provided
             if [ -z "$2" ]; then
-                echo "[INFO] Using default conda environment name: isaaclab"
-                conda_env_name="isaaclab"
+                echo "[INFO] Using default conda environment name: env_isaaclab"
+                conda_env_name="env_isaaclab"
             else
                 echo "[INFO] Using conda environment name: $2"
                 conda_env_name=$2