feat: adds a simple Hyprland monitor extension

[FredrikMWold]

New extension for managing Hyprland monitor configurations through Vicinae.

Detects connected monitors and allows changing resolution, refresh rate, scaling, rotation, and positioning via a form interface. Includes a 10-second safety countdown to confirm changes or auto-revert.

Configurations are persisted to vicinae-monitors.conf which is automatically sourced in the main Hyprland config.

[fufexan]

Looks cool, though I believe there should be a mode that does not require writing files. For example, I mostly used anyrun's randr plugin for one-off changes.

[aurelleb]

I agree with @fufexan here that modifying the Hyprland config as a default behavior is a bit too intrusive imo. It should probably be a secondary action on the apply changes view, "apply and save". And you could add a preference to decide which one should be the default, so that the user can tweak that.

Also, most of the other comments are probably weird edge cases stemming from the fact I'm using a single display split in two physical displays using PBP. But nevertheless, it should be handled correctly.

[FredrikMWold]

Will look at it soon

[FredrikMWold]

@aurelleb I did not mean to close the PR.
I have fixed the things mentioned