[WIP] Add long-press support for the shrunk address bar

[hot666666]

📜 Tickets

Jira ticket
Github issue

💡 Description

🎥 Demos

Screen.Recording.2026-05-19.at.22.28.39.mov

Before	After

Demo

📝 Checklist

• I filled in the ticket numbers and a description of my work
• I updated the PR name to follow our PR naming guidelines
• I ensured unit tests pass and wrote tests for new code
• If working on UI, I checked and implemented accessibility (Dynamic Text and VoiceOver)
• If adding telemetry, I read the data stewardship requirements and will request a data review
• If adding or modifying strings, I read the guidelines and will request a string review from l10n
• If needed, I updated documentation and added comments to complex code

[mergify]

This pull request has conflicts when rebasing. Could you fix it @hot666666? 🙏

[github-actions]

This PR has been automatically marked as stale. Please leave any comment to keep this PR opened. It will be closed automatically if no further update occurs in the next 7 days. Thank you for your contributions!