Reapply "Always focus the panel when clicked to ensure menu buttons are visible"

[hassoncs]

Re-apply the fix from #4592, this time with proper detection of all VSCode related input tags!

Test plan:

• Redid previous testing
• Explicitly tested that all input boxes now work

---

Important

Re-applies panel focus fix with improved input detection, adding a new command and utility for focusing panels, and updates webview to request focus on non-interactive clicks.

• Behavior:
  • Re-applies panel focus fix to ensure menu buttons are visible when the panel is clicked.
  • Adds focusPanelRequest message handling in webviewMessageHandler.ts to execute focusPanel command.
  • Implements useAddNonInteractiveClickListener in App.tsx to post focusPanelRequest when non-interactive elements are clicked.
• Commands:
  • Adds focusPanel command in registerCommands.ts to focus the active panel using focusPanel().
• Utilities:
  • Introduces focusPanel() in focusPanel.ts to focus either tab or sidebar panels.
• Misc:
  • Adds focusPanel to commandIds in vscode.ts.
  • Fixes spacing typo in TelemetryService.ts.

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[hassoncs]

I was missing these before which caused the revert

[daniel-lxs]

This change is unrelated but the linter does it automatically

[daniel-lxs]

Hey @hassoncs, I made some changes to prevent some weird behavior I was seeing with the tab trying to focus again even when it already had the focus.
Also the sidebar doesn't need focus when clicking a non-interactive element since the icons in the toolbar are always visible.

I tested every input field I could find and seems to be working.

LGTM