Normalizes line endings for docs/make.bat (#3757)

# Description

When cloning the repo, make.bat caused line ending changes to be
triggered on Linux due to difference in Windows and Linux styles. This
change normalizes the script to avoid triggering git conversions when
cloning the repo.

## Type of change

- Bug fix (non-breaking change which fixes an issue)


## Checklist

- [x] I have read and understood the [contribution
guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html)
- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

docs/make.bat

-@ECHO OFF
-
-pushd %~dp0
-
-REM Command file to build Sphinx documentation
-
-set SOURCEDIR=.
-set BUILDDIR=_build
-
-REM Check if a specific target was passed
-if "%1" == "multi-docs" (
-	REM Check if SPHINXBUILD is set, if not default to sphinx-multiversion
-	if "%SPHINXBUILD%" == "" (
-		set SPHINXBUILD=sphinx-multiversion
-	)
-	where %SPHINXBUILD% >NUL 2>NUL
-	if errorlevel 1 (
-		echo.
-		echo.The 'sphinx-multiversion' command was not found. Make sure you have Sphinx
-		echo.installed, then set the SPHINXBUILD environment variable to point
-		echo.to the full path of the 'sphinx-multiversion' executable. Alternatively you
-		echo.may add the Sphinx directory to PATH.
-		echo.
-		echo.If you don't have Sphinx installed, grab it from
-		echo.http://sphinx-doc.org/
-		exit /b 1
-	)
-	%SPHINXBUILD% %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
-
-	REM Copy the redirect index.html to the build directory
-	copy _redirect\index.html %BUILDDIR%\index.html
-	goto end
-)
-
-if "%1" == "current-docs" (
-	REM Check if SPHINXBUILD is set, if not default to sphinx-build
-	if "%SPHINXBUILD%" == "" (
-		set SPHINXBUILD=sphinx-build
-	)
-	where %SPHINXBUILD% >NUL 2>NUL
-	if errorlevel 1 (
-		echo.
-		echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
-		echo.installed, then set the SPHINXBUILD environment variable to point
-		echo.to the full path of the 'sphinx-build' executable. Alternatively you
-		echo.may add the Sphinx directory to PATH.
-		echo.
-		echo.If you don't have Sphinx installed, grab it from
-		echo.http://sphinx-doc.org/
-		exit /b 1
-	)
-	if exist "%BUILDDIR%\current" rmdir /s /q "%BUILDDIR%\current"
-	%SPHINXBUILD% -W "%SOURCEDIR%" "%BUILDDIR%\current" %SPHINXOPTS%
-	goto end
-)
-
-REM If no valid target is passed, show usage instructions
-echo.
-echo.Usage:
-echo.  make.bat multi-docs    - To build the multi-version documentation.
-echo.  make.bat current-docs  - To build the current documentation.
-echo.
-
-:end
-popd
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file to build Sphinx documentation
+
+set SOURCEDIR=.
+set BUILDDIR=_build
+
+REM Check if a specific target was passed
+if "%1" == "multi-docs" (
+	REM Check if SPHINXBUILD is set, if not default to sphinx-multiversion
+	if "%SPHINXBUILD%" == "" (
+		set SPHINXBUILD=sphinx-multiversion
+	)
+	where %SPHINXBUILD% >NUL 2>NUL
+	if errorlevel 1 (
+		echo.
+		echo.The 'sphinx-multiversion' command was not found. Make sure you have Sphinx
+		echo.installed, then set the SPHINXBUILD environment variable to point
+		echo.to the full path of the 'sphinx-multiversion' executable. Alternatively you
+		echo.may add the Sphinx directory to PATH.
+		echo.
+		echo.If you don't have Sphinx installed, grab it from
+		echo.http://sphinx-doc.org/
+		exit /b 1
+	)
+	%SPHINXBUILD% %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+	REM Copy the redirect index.html to the build directory
+	copy _redirect\index.html %BUILDDIR%\index.html
+	goto end
+)
+
+if "%1" == "current-docs" (
+	REM Check if SPHINXBUILD is set, if not default to sphinx-build
+	if "%SPHINXBUILD%" == "" (
+		set SPHINXBUILD=sphinx-build
+	)
+	where %SPHINXBUILD% >NUL 2>NUL
+	if errorlevel 1 (
+		echo.
+		echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+		echo.installed, then set the SPHINXBUILD environment variable to point
+		echo.to the full path of the 'sphinx-build' executable. Alternatively you
+		echo.may add the Sphinx directory to PATH.
+		echo.
+		echo.If you don't have Sphinx installed, grab it from
+		echo.http://sphinx-doc.org/
+		exit /b 1
+	)
+	if exist "%BUILDDIR%\current" rmdir /s /q "%BUILDDIR%\current"
+	%SPHINXBUILD% -W "%SOURCEDIR%" "%BUILDDIR%\current" %SPHINXOPTS%
+	goto end
+)
+
+REM If no valid target is passed, show usage instructions
+echo.
+echo.Usage:
+echo.  make.bat multi-docs    - To build the multi-version documentation.
+echo.  make.bat current-docs  - To build the current documentation.
+echo.
+
+:end
+popd