* Autodetect SD removal, see desc
Also:
- Mark read-only drives as `[R]`
- Detect and respect write protect on SD card
- Don't attempt to remount SD card if not inserted
- Fix repo link on startup screen
* There are enough characters for `https`
I didn't notice there was actually 1 more column usable
Co-authored-by: RocketRobz <bobesh8@gmail.com>
