Improve typing for api paths and update playwright documentation

[fungairino]

What does this PR do?

• Better typing for urlPaths
• Updated documentation for using playwright snapshots

Discussion

• I borrowed the typing logic from this cool example I found on https://github.com/ghoullier/awesome-template-literal-types?tab=readme-ov-file#router-params-parsing
  • https://github.com/ghoullier/awesome-template-literal-types?tab=readme-ov-file#router-params-parsing

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 74.79%. Comparing base (8318d74) to head (c761f8e).
Report is 300 commits behind head on main.

Files with missing lines	Patch %	Lines
src/extensionConsole/pages/mods/Status.tsx	33.33%	2 Missing ⚠️
...c/background/messenger/external/_implementation.ts	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9167      +/-   ##
==========================================
+ Coverage   74.24%   74.79%   +0.54%     
==========================================
  Files        1332     1360      +28     
  Lines       40817    41883    +1066     
  Branches     7634     7822     +188     
==========================================
+ Hits        30306    31326    +1020     
- Misses      10511    10557      +46     

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[github-actions]

Playwright test results

 126 passed
 2 flaky
 4 skipped

Details

 Open report ↗︎
 132 tests across 44 suites
 12 minutes, 18 seconds
 c761f8e
 For more information on how to debug and view this report, see our readme

Flaky tests

chrome › tests/pageEditor/addStarterBrick.spec.ts › Add starter brick to mod
msedge › tests/pageEditor/addStarterBrick.spec.ts › Add starter brick to mod

Skipped tests

chrome › tests/regressions/doNotCloseSidebarOnPageEditorSave.spec.ts › #8104: Do not automatically close the sidebar when saving in the Page Editor
msedge › 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
msedge › tests/runtime/googleSheetsIntegration.spec.ts › can activate a google spreadsheet mod with config options

[github-actions]

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