ES-Alexander

Same issue was raised [here](https://discuss.bluerobotics.com/t/how-to-toggle-cameras-in-blueos/12227), and was apparently solved by flashing on a new BlueOS image.

Turns out the issue was not in fact solved - it just temporarily worked for them after they flashed, and is still somewhat intermittent.

> Does Blue Robotics have a plan to officially support Glider control system on ArduSub project? Nothing specific at this stage. I'm personally interested in ArduSub supporting additional sub-marine control...

This is extra practical now that default extensions (#2656) are supported.

Some initial interface ideas: Currently unspecified: - `MOT_BAT_*` - RC - Throttle - Vibration - `FS_Options` bitmask - All "Advanced failsafes" (`AFS_*`) - Pre-arm checks (autopilot-related or otherwise)

Extracted the main images as SVG files, so we can see what they look like in the actual interface:           Happy...

Cleaned up the current designs as an alternative style option, and added a new one for radio control loss:  Correctly formatted SVGs downloadable here: [failsafe-svgs.zip](https://github.com/user-attachments/files/16041512/failsafe-svgs.zip)

I ended up making an in-between set as well, with a bit more of the drawn vibe returned: Correctly formatted SVGs downloadable here: [drawn70-failsafes.zip](https://github.com/user-attachments/files/16050519/drawn70-failsafes.zip)

SMS has requested a modified colour scheme: [SMS-failsafe-image-colours.pdf](https://github.com/user-attachments/files/16076752/FAILSAFE.ICONS.pdf) Colour-corrected SVGs: [drawn70-sms-colours.zip](https://github.com/user-attachments/files/16077734/drawn70-sms-colours.zip)

As of #3023, the SVG colours now use themeable CSS variables. Noting for any further diagrams that get added to support other failsafe types.