frontend: Clean up MAVLink refresh rates on leave (store + vehicle setup)

[joaoantoniocardoso]

Summary

• Allow setMessageRefreshRate to lower rates (not only raise), replacing the listener when the rate changes.
• Vehicle setup / MainView / compass: ratchet rates down on destroy, discard position listeners, clear CompassDisplay render interval + GSAP tweens.

Test plan

• Visit Home (ATTITUDE 10 Hz) then leave: rate drops to 1 Hz
• Open compass configure, leave: render interval stops; IMU/ATTITUDE rates ratchet down
• Gyro calib mount/unmount does not leave 10 Hz streams forever
• Level horizon dialog open/close does not fight CompassDisplay ATTITUDE rate while both tabs are alive

[github-actions]

Automated PR Review

0. Summary

• Verdict: LGTM

Tightens the MAVLink refresh-rate lifecycle across the vehicle-setup components. In store/mavlink.ts, negative rates now short-circuit early, and the store honors any rate change (previously a lower-rate request was silently rejected while the underlying wire request still went out, leaving the store's listener frequency out of sync with the wire). Adds beforeDestroy cleanup that discards leaked setInterval/GSAP tweens (CompassDisplay) and ratchets ATTITUDE/IMU/GPS rates back down to 1 Hz on leave (MainView, CompassDisplay, GyroCalib). AutoCoordinateDetector now markRaws its GLOBAL_POSITION_INT listener (correct — Endpoint.latestData must not be deep-observed by Vue) and discards it on destroy. LevelHorizonCalibration gains an explanatory comment justifying why it deliberately does not ratchet ATTITUDE down on dialog close (sibling CompassDisplay may still be mounted in another kept-alive tab). Vue 2.7.14 is locked in yarn.lock, so markRaw is available.

No further comments, nice job 👍

Generated by PR Review Bot. This is advisory, a human reviewer must still approve.

[joaoantoniocardoso]

Superseded by #4047 (same changes, head moved to fork joaoantoniocardoso/BlueOS-docker).

[joaoantoniocardoso]

Closed in favor of #4047.