Remove legacy ReactFlow workspace-related code

[ohltyler]

Recent UX changes changed the paradigm of persisting form data within a ReactFlow workspace -> persisting within a form component. As a consequence, there is a lot of legacy code that can be removed once the base refactoring of existing functionality is complete. This includes:

• refactoring the component_types/ classes to be simplified and not contain form data. Many may be removed as well
• constants related to component_types no longer in use
• the entire component_details component once relevant code has been refactored elsewhere
• utility / conversion fns to convert between form <-> component data <-> workflow template no longer in use

[dblock]

Catch All Triage - 1 2 3 4 5 6

[ohltyler]

Been completed via several PRs over time. Resolving.