[FEATURE] Resizable window and resizable map in Arnis

[sas152ana]

Is your feature request related to a problem? Please describe.
On big monitors, or monitors with high resolution, Arnis can look too small. It's often uncomfortable to use its map.

Describe the solution you'd like
It would be great to make Arnis window resizable or bigger map at fullscreen.

Additional context

[TheComputerGuy96]

Making the window resizable should be as easy as editing this line: https://github.com/louis-e/arnis/blob/v2.2.0/tauri.conf.json#L16

[benjamin051000]

Depending on the CSS, you may also need to edit the div (or whatever it's called) that contains the map to allow it to resize. I am not a GUI developer.