fix(api): add stopped state so a stop request doesn't mean the gripper needs to re-home #16853
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Overview
This fixes an error that happens during error recovery where the gripper needs to re-home because the error flow sends a stop request.
This fixes that by adding a new state called stop, and if the firmware responds with STOPPED instead of UNHOMED then we know we can just continue on without re-homing.
The gripper will still go into a UNHOMED state during the following:
Labware droped
Collision
Estop
Test Plan and Hands on Testing
Changelog
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Risk assessment