FormTable improvements

[sharadsw]

The purpose of this PR is to clean up the code in FormTables, specifically in this component tree:

IntegratedRecordSelector
 - RecordSelectorFromCollection
   --- useRecordSelector
    - FormTableCollection
      - FormTable

The idea was to make things more readable as we encountered a lot of bugs in FormTables/Subviews that were hard to debug

Summary of my changes:

• Changed RecordSelectorFromCollection to a regular hook instead of a callback JSX hook
• Changed IntegratedRecordSelector to use the new hook
• Broke down some parts of FormTable.tsx into smaller components to make it more readable

Checklist

• Self-review the PR after opening it to make sure the changes look good
  and self-explanatory (or properly documented)
• Add automated tests
• Add relevant issue to release milestone

Testing instructions