Root cause: all sidebar menu buttons used tr_noop() which returns the
original string without translation. Replaced with tr() for all 16 menu
items (Device, Network, sunnylink, Toggles, Software, Models, Steering,
Cruise, Visuals, Display, OSM, Trips, Vehicle, Firehose, Developer).
Also fixes:
- PairBigButton: pair/paired/subscribed/upgrade to prime hardcoded text
- UpdateOpenpilotBigButton: 'update sunnypilot' hardcoded text
- SunnylinkHeader title: '🚀 sunnylink 🚀' hardcoded text
- OSM: DELETING..., Loading... hardcoded text
- PO: added 25 new translation entries for all above items