WIP: Add Report Issue dialog UI and wire it to Settings menu

[eddie-wq07]

What this PR does

• Adds a new ReportIssueDialog UI component
• Wires the dialog into the Settings dropdown (replacing the previous disabled item)
• Provides basic form fields (title, description, optional contact email)
• Submit currently closes the dialog (no backend yet)

Why

This sets up the user-facing UI for reporting issues so we can get early
feedback on wording, layout, and interaction before adding backend support.

What’s not included yet

• Backend submission (tRPC mutation + Bugsink integration)
• Validation beyond basic form handling

How to test

1. Run the app locally
2. Open the Settings dropdown
3. Click "Report Issue"
4. Verify the dialog opens and submit closes it

Notes

Opening this PR early for UI/UX feedback before proceeding with backend work.

[theosiemensrhodes]

I think we should do "Report an Issue" maybe, otherwise great work on the frontend