PX4 setup: Put sensors before radio to create the right affordance: We want the user to handle this first

Don't close mobile dialog on file delete

This ensures no ports are being displayed to the user that are definitely unusable.

The earlier sleep calls disabled the app event queue, leading to "beachballing" in Mac OS and a visible boot delay / jitter. Running the event loop actively while waiting prevents the UI from freezing.

We were connecting to system peripherals before, which adds boot delay as QGC re-tries opening the port. We were also opening serial ports two times on Mac OS: Once as /dev/cu.usbmodem1 and once as /dev/tty.usbmodem1 - since the cu.usbmodem alias was already open, the 2nd opening always failed, leading to further boot delay.

Remove zip experiment.

sequence numbers are only increased after a new RTCM message, while only
the fragment id is incremented within a fragmented message.