GPU memory monitoring

[CLEMENTINATOR]

Pull Request

Motivation

Fix issue #1749

Type of Change

Mark the relevant option with an "x".

• Bug fix
• New feature
• Breaking change
• Refactoring

Related Issue

• Closes #(issue number) (if any)

Testing

Describe how you tested your changes and mark the relevant items.

• Tested on niri
• Tested on Hyprland
• Tested on sway
• Tested with different bar positions and density settings
• Tested at different interface scaling values
• Tested with multiple monitors (if applicable)

Screenshots / Videos

Checklist

• Code follows project style guidelines
• Self-reviewed my code
• No new warnings or errors
• Documentation or comments updated (if relevant)

Additional Notes

Hey ! lots of stuff in this PR ! in addition to the GPU memory icon in the SystemMonitor (maybe we need a different icon?)

I reworked the GPU detection in the project as my amd igpu was selected first (instead of my nvidia dgpu).
Now we detect igpu using project id (AI did the tables), and we have a way to select the GPU we want to follow.

havent tested with intel dgpu/igpu

[CLEMENTINATOR]

@ItsLemmy hey ! I know its a big one but it should be good now !