Linux DPI implementation

[elibroftw]

Is your feature request related to a problem? Please describe.

My Tauri app's UI is 2x when the scale of the system is 200%. I need a way to zoom in a more consistent manner.

Describe the solution you'd like

I want a way to subscribe to the DPI and any changes for the duration of the app so that I can emit to my window what zoom to set on the CSS.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Implementing it myself in Rust? Somehow?

Additional context
Add any other context or screenshots about the feature request here.