ensure path is set when opening the sidebar

[fungairino]

What does this PR do?

This PR addresses a rare issue in the Pixiebrix extension where the side panel does not open as expected. The fix involves setting the path again in the openSidePanelMv3 function within the sidePanelUtils.ts file.

I suspect that this happens when the tab is replaced but we don't rerun the onCreated listener in the trigger for some reason, but I can't say for sure.

I verified this fix by pausing the debugger in an affected tab, and running the same code with the path set, and then the sidebar opened.

See: https://pixiebrix.slack.com/archives/C0436P48QHY/p1715608128610539

Checklist

• Add jest or playwright tests and/or storybook stories
• Designate a primary reviewer @grahamlangford

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.42%. Comparing base (6d95047) to head (dfe39ad).
Report is 57 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8452      +/-   ##
==========================================
- Coverage   73.47%   73.42%   -0.05%     
==========================================
  Files        1334     1352      +18     
  Lines       41259    41523     +264     
  Branches     7686     7778      +92     
==========================================
+ Hits        30316    30490     +174     
- Misses      10943    11033      +90     

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[github-actions]

Playwright test results - MV2

 41 passed
 1 flaky
 8 skipped

Details

 Open report ↗︎
 50 tests across 18 suites
 10 minutes, 12 seconds
 dfe39ad

Flaky tests

edge › tests/extensionConsoleActivation.spec.ts › can activate a mod with a database

Skipped tests

chrome › tests/extensionConsoleActivation.spec.ts › can activate a mod with built-in integration
edge › tests/extensionConsoleActivation.spec.ts › can activate a mod with built-in integration
chrome › tests/runtime/sidebarController.spec.ts › sidebar controller › shows focus dialog in top-level frame
edge › tests/runtime/sidebarController.spec.ts › sidebar controller › shows focus dialog in top-level frame
chrome › tests/runtime/sidebarNavigation.spec.ts › sidebar mod panels are persistent during navigation
chrome › tests/runtime/sidebarNavigation.spec.ts › sidebar form and temporary panels are unavailable after navigation
edge › tests/runtime/sidebarNavigation.spec.ts › sidebar mod panels are persistent during navigation
edge › tests/runtime/sidebarNavigation.spec.ts › sidebar form and temporary panels are unavailable after navigation

[github-actions]

Playwright test results - MV3

 48 passed
 2 flaky

Details

 Open report ↗︎
 50 tests across 18 suites
 14 minutes, 28 seconds
 dfe39ad

Flaky 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