#8607 Rename useAddElement -> useAddNewModComponent hook

[mnholtz]

What does this PR do?

• Part of Rename element -> modComponentFormState #8607
• Refactor by renaming the useAddElement hook -> useAddNewModComponent hook and all dependency methods/types
• Hoping to keep these PRs small & numerous as I hack away at Rename element -> modComponentFormState #8607

Reviewer tips

• Take a look at my commit messages for a quick summary of what I renamed

Checklist

• Add jest or playwright tests and/or storybook stories - n/a
• Designate a primary reviewer @BLoe

[mnholtz]

I considered removing activateElement a side effect here, but I decided to stick purely to renaming as is the goal of this work.

[codecov]

Codecov Report

Attention: Patch coverage is 59.45946% with 15 lines in your changes missing coverage. Please review.

Project coverage is 73.70%. Comparing base (c32e86f) to head (340c4d9).
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/pageEditor/hooks/useAddNewModComponent.ts	8.33%	11 Missing ⚠️
src/pageEditor/panes/insert/useAutoInsert.ts	33.33%	2 Missing ⚠️
...geEditor/sidebar/ActivatedModComponentListItem.tsx	0.00%	1 Missing ⚠️
src/pageEditor/sidebar/AddStarterBrickButton.tsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8640   +/-   ##
=======================================
  Coverage   73.69%   73.70%           
=======================================
  Files        1344     1344           
  Lines       41566    41598   +32     
  Branches     7775     7780    +5     
=======================================
+ Hits        30633    30660   +27     
- Misses      10933    10938    +5     

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[github-actions]

Playwright test results

 75 passed
 2 skipped

Details

 Open report ↗︎
 77 tests across 26 suites
 10 minutes, 46 seconds
 340c4d9

Skipped tests

chrome › tests/runtime/googleSheetsIntegration.spec.ts › can activate a google spreadsheet mod with config options
edge › tests/runtime/googleSheetsIntegration.spec.ts › can activate a google spreadsheet mod with config options

[github-actions]

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