Description

This PR integrates the automated behavior of displaying a tablet to a user into the web app.

Testing procedure

[ ] Pull the stretch_show_tablet repo, and pull this branch.
[ ] Change the tool to a tablet and run stretch_configure_tool.py.
[ ] Re-build your workspace.
[ ] ./launch_interface.sh
[ ] Toggle on "Show Pose", verify that it detects you when you are in Realsense camera frame and not otherwise.
[ ] Move to different poses (stretching, sitting, standing, legs crossed), and verify it detects you.
[ ] Toggle on realsense depth sensing while "Show Pose" is on, and verify both are overlaid on.
[ ] Verify that the "Show tablet" button appears when "Show Poses" is checked, and dissapears otherwise.
[ ] Uncheck "show poses". Verify the stretch_deep_perception node stops running (e.g., ros2 topic echo /body_landmarks/landmarks_3d and verify nothing publishes).
[ ] Drive the robot near you. Check "Show Poses." Click "Show tablet." Verify it works.
[ ] Repeat the above from several different base positions/orientations relative to you, and several different body postures.
[ ] Run "Show tablet" and then cancel it, verify that works.
[ ] Repeat the above, canceling at each distinct joint motion.
[ ] Run "Show tablet" and then command a joint motion, verify it cancels.
[ ] Repeat the above at every distinct joint motion in "Show Tablet."
[ ] Re-run the performance benchmarking documented here, verify that this code doesn't hinder performance.

From the top-level of this repository, run: