fix(designer): Fixed various bugs in undo/redo

[shuktika12163]

Requirement Checklist

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes or features)
• Docs have been added or updated (for bug fixes or features)

Type of Change

• Bug fix
• Feature
• Other

Current Behavior

List of bugs being tackled here (in review/active) - each commit is associated with each fix:
https://msazure.visualstudio.com/One/_queries/query/a6e3b020-844f-409b-9bf5-5f5163419d4a/

1. Parameter panel re-render edge case: Bug 29820667: [V3 undo redo bug bash] Undoing a change in the panel without reopening the panel does not reflect the state update

2. Delete operations:

• Bug 29821282: [V3 undo redo bug bash] Deleting a scope adds an "invisible" undo step (i.e., you can undo one additional time after undoing deleting the scope)
• Bug 29821013: [V3 undo redo bug bash] Removing condition or scope undo-es each remove individually

3. Optional parameter conditional visibility: Bug 29857755: [V3 undo redo bug bash] Removing optional parameter is skipping a state in between

4. Manual trigger/floating action menu:

• Bug 29821430: [V3 undo redo bug bash] Manual trigger text input undoes 1 keystroke at a time
• Bug 29851270: [V3 undo redo bug bash] Floating action menu outputs editor does not save state
• Bug 29900468: [V3 undo redo bug bash] Manual trigger undo doesn't work

5. Title update issues

• Custom people picker editor causing re-render in parameters panel causing title updates without any changes: Bug 29820626: [V3 undo redo bug bash] Undo/redo doesn't work when there are changes in people picker editor
• Clicking in and out of title was saving a state even without any changes

New Behavior

Above bugs have been fixed:

1. Parameter re-render fix:
   

2. Delete operations fix:
   

3. Optional parameter conditional visibility fix:
   

4. Manual trigger/floating action menu fixes:
   

5. People picker/title change fix:
   Clicking in and out of title doesn't save a new state. It only saves state when value changes
   

Impact of Change

• This is a breaking change.

Screenshots or Videos (if applicable)