rbv_at_setpoint indicator as red border around param

[ThomasLohnert]

Description of work

When a parameter is not moving and has not arrived at its setpoint, this error is now highlighted as a red border around the whole parameter "container". This is because a) it brings it in line with how such an error is highlighted in the SECI table of motors (and possibly in the IBEX table of motors in the future, see #4035, and b) because it makes it more distinct from the newly added alarms around parameter readback values.

Related PRs:
ISISComputingGroup/EPICS-inst_servers#244
ISISComputingGroup/EPICS-IOC_Test_Framework#258

Ticket

ISISComputingGroup/IBEX#3892

Acceptance criteria

• Parameter alarms are clearly visible on reflectometry front panel
• Paramaters "not at rbv" are clearly visible on the reflectometry front panel
• Both of the above simultaneously

Unit tests

None

System tests

None

Documentation

None. Ticket to create documentation once the UI is less in flux created here.

---

Code Review

• Is the code of an acceptable quality?
• Do the changes function as described and is it robust?
• Have the changes been documented in the release notes?

Final Steps

• Reviewer has moved the release notes entry for this ticket in the "Changes merged into master" section

[aaron-long]

• Fix overlap on column headers under Important beamline parameters

• The InBeamParameters seem to have not been updated to remover the RBV highlight