Updates default viewer pose to see the whole scene for Agibot environment (#3516)

# Description

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Fixes bug for toy object intermittently spawning behind the box for the
task Isaac-Place-Toy2Box-Agibot-Right-Arm-RmpFlow-v0

- Reset the default viewer camera pose to see the whole scene.



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## Type of change

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


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source/isaaclab_tasks/isaaclab_tasks/manager_based/manipulation/place/config/agibot/place_toy2box_rmp_rel_env_cfg.py

@@ -198,6 +198,10 @@ class PlaceToy2BoxEnvCfg(ManagerBasedRLEnvCfg):
         self.sim.physx.gpu_total_aggregate_pairs_capacity = 16 * 1024
         self.sim.physx.friction_correlation_distance = 0.00625
 
+        # set viewer to see the whole scene
+        self.viewer.eye = [1.5, -1.0, 1.5]
+        self.viewer.lookat = [0.5, 0.0, 0.0]
+
 
 """
 Env to Replay Sim2Lab Demonstrations with JointSpaceAction