feat: tauri integration (desktop and mobile)

[hazre]

Description

Fixes #88

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

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[Kirottu]

After some testing of the preliminary CEF work, here are some of my findings:

For it to run at, the LD_LIBRARY_PATH had to be set like this:

LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [
    pkgs.libayatana-appindicator
    pkgs.nspr
    pkgs.nss
    pkgs.at-spi2-atk
    pkgs.dbus
    pkgs.cups
    pkgs.libx11
    pkgs.libxcomposite
    pkgs.libxdamage
    pkgs.libxext
    pkgs.libxfixes
    pkgs.libxrandr
    pkgs.libgbm
    pkgs.expat
    pkgs.libxcb
    pkgs.libxkbcommon
    pkgs.cairo
    pkgs.udev
    pkgs.alsa-lib
    pkgs.pango
  ];
};

in the flake and further amended by adding the CEF library path to it as per the instructions in the cef-rs crate.

After that, it would crash trying to create the tray icon since GTK hasn't been initialized which makes sense I suppose since webkitgtk isn't handling a GTK event loop.

After patching that out however, it would still not work and rather it would 100% utilize a single thread, and hang until manually killed with no window opening. These are the log lines after it was killed:

[296719:296719:0316/203346.190182:ERROR:ui/compositor/compositor_animation_observer.cc:65] CompositorAnimationObserver is active for too long (111.303s) location=TabIcon@chrome/browser/ui/views/tabs/tab_icon.cc:96
[296719:296719:0316/203346.190217:ERROR:ui/compositor/compositor_animation_observer.cc:65] CompositorAnimationObserver is active for too long (111.279s) location=Button@ui/views/controls/button/button.cc:668