Support for increasing text size

[puddlecoded]

Added a setting to increase text size

[Fredolx]

I like the idea, but I'm thinking maybe there's a way where this could be more customizable? Like VSCode, using Ctrl + + increments. I'm not asking you to make such a feature, if you would like to explore that, sure, maybe I'll look into it myself

[Fredolx]

tauri-apps/tauri#3310

Haven't had time to read it in full yet

[Fredolx]

{
  ...
  "app": {
    "windows": [
      {
        ...
        "zoomHotkeysEnabled": true
      }
    ],
  },
  ...
}

already supported by the Tauri conf it seems

https://v2.tauri.app/reference/config/

[puddlecoded]

Yes, the zoom hotkeys will be much better.

However, I'd like the zoom level to persist in the settings
so it remains consistent upon reopening -
my parents are using OpenTV,
so the less keys they have to press the better

Will close this PR and make a try to make a new one supporting that.

Thank you for this awesome app