Maintenance release for development-build coexistence and diagnostics.

This release improves behavior when the published extension and an unpacked development build are installed in the same browser.

This release improves behavior when the published extension and an unpacked development build are installed in the same browser.

• Emoji images with alt text — Tooltips now appear on emoji <img> elements that identify the emoji via the alt attribute, in addition to the existing data-emoji attribute support
• Iframe support — Tooltips now work on emojis inside embedded iframes
• Improved SPA compatibility — More reliable tooltip detection on sites that dynamically replace page content

YouTube Live Chat is one example of a site that benefits from all three of these improvements.

Updated emoji support to Unicode emoji v17.0.

Show in text fields -- new opt-in setting to display tooltips when hovering over emojis inside compose boxes and other editable areas (e.g. Gmail compose). Uses a floating tooltip to avoid modifying editable content.
Unicode 16.0 emoji data -- updated from 15.1 to 16.0 (3,781 emojis)

fix: support Gmail emoji img elements