vertical-speedmeter v1.1.0: Add user-selectable network interface

[2u841r]

• Add interface submenu to left-click popup menu; lists all /sys/class/net interfaces, checkmarks current selection, persists across restarts
• Add settings-schema.json for storing preferred interface preference
• Fix: manually invoke handler after setValue so label and monitor update immediately
• Bump version 1.0.0 -> 1.1.0, update README with interface selection docs and version history

[github-actions]

Best-practices scanner

This is a regex-based check for API usage that can pose security, performance or
maintainability issues, or that may already be provided by Cinnamon. Having code flagged
by it doesn't automatically disqualify a pull request.

This check is not perfect will not replace a normal review.

---

Found 1 potential issue(s):

⚠️ sync_file_enumerate_children

vertical-speedmeter@2u841r/files/vertical-speedmeter@2u841r/applet.js:134

let enumerator = dir.enumerate_children("standard::name", Gio.FileQueryInfoFlags.NONE, null);

Synchronous enumerate_children() blocks the main loop.
Use enumerate_children_async() instead.

---

Automated pattern check.