#8739 Package standalone mods on save - Slice 3

[BLoe]

What does this PR do?

• Closes Slice 3: Remove dead code for saving standalone mod components #8739

For more information on our expectations for the PR process, see the
code review principles doc

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.18%. Comparing base (8318d74) to head (f993673).
Report is 46 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8796      +/-   ##
==========================================
- Coverage   74.24%   74.18%   -0.07%     
==========================================
  Files        1332     1332              
  Lines       40817    40940     +123     
  Branches     7634     7665      +31     
==========================================
+ Hits        30306    30371      +65     
- Misses      10511    10569      +58     

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[github-actions]

Playwright test results

 83 passed
 1 flaky
 4 skipped

Details

 Open report ↗︎
 88 tests across 31 suites
 13 minutes, 39 seconds
 f993673

Flaky tests

chromeSetup › setup/affiliated.setup.ts › authenticate with affiliated user

Skipped tests

chrome › tests/regressions/doNotCloseSidebarOnPageEditorSave.spec.ts › #8104: Do not automatically close the sidebar when saving in the Page Editor
edge › tests/regressions/doNotCloseSidebarOnPageEditorSave.spec.ts › #8104: Do not automatically close the sidebar when saving in the Page Editor
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

[twschiller]

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[github-actions]

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