[AT-1759] - Update subarray scanning in TelescopeModelPlot.
The subarray scanning was not implemented properly for the monitor plot:
- Transitioning to scanning would result in configuring state to transition to IN_PROGRESS.
- The SCANNING state would display as ACTIVE (which in my understanding shows when one of the states is 'complete'). So changed this to display IN_PROGRESS rather.
- Added a READY state for scanning which is transitioned into once SCANNING is complete: not sure if this makes sense, should the state before/after SCANNING be the same?
This change originates from a request from @manish_lalwani11 who observed that the scanning state changes are not reflected in the monitor plot.
Edited by Pieter Jordaan