[Feature] Add beta support for SPIKE / MINDSTORMS installation in Pybricks Code

[laurensvalk]

Is your feature request related to a problem? Please describe.
It is currently not easy to install Pybricks on SPIKE Prime, SPIKE Essential, and MINDSTORMS robot inventor. This issue is about adding a minimized solution to make it work.

Describe the solution you'd like
On a settings or "experimental" tab, add the following:

• A button (or clickable text item) to connect to the hub via USB:
  • Only enabled if no hub is currently connected via BLE (info box can say "disconnect first")
  • Button opens the browser dialog to connect to LEGO devices with the right USB ids
  • Once connected, it communicates over USB serial:
    • It pastes this function into the REPL to provide a basic file transfer interface. See also the same file for doing a soft reset before doing anything. This could be adapted into something that works well with what Pybricks Code has already for uploads.
    • Install the firmware via this procedure: This uploads a few files from the firmware.zip archive, including the install script, and runs it.
  • All output is displayed in the Pybricks Code terminal, so no need for fancy progress bars for now.
• A button to restore the original firmware:
  • Only enabled if Pybricks hub is currently connected via BLE (add info box to say "connect first")
  • The button is just a shorthand for downloading and running this script

  from pybricks.experimental import restore_firmware
  from pybricks import version
  
  print(version)
  restore_firmware()

• A link to the DFU recovery page as a fall back option

Describe alternatives you've considered
It works via pybricksdev and a separate web page, but not all hubs are supported and the firmware easily gets outdated.

[dlech]

This feature has been released in Pybricks Code v3.2.0b3 (Pybricks Beta v2.0.0-beta.4).