- Based on sniffnet github CI [0]

[0]: https://github.com/GyulyVGC/sniffnet/blob/main/.github/workflows/package.yml



Changelog: added
Signed-off-by: Ayush Singh <ayush@beagleboard.org>

- Match colors of bb-imager closely
- Also switch to Roboto font which is included at compile time.
- Fix small bugs
- Some cleanup

Signed-off-by: Ayush Singh <ayush@beagleboard.org>

- So the GUI now has basic flashing support for beagleconnect freedom
  and looks decent.
- I am using pages instead of new windows for selecting stuff.
- Searching not implemented yet.
- Probably can improve code quality by a lot as well.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>

- Make it look not ugly
- Follow original bb-imager when possible.
- Functionality not implemented yet, just design.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>