Use `XDG_ACTIVATION_TOKEN` from environment variables by default

fixes #1247

* Initial support for d3d11 qml video item

* Windows screenshare support, D3D11

* misc fixes

* further window visibility checks

* preview updates

* fix qml preview

* fix compositor

* add libnice plugin dep

* re-run formatter

* final formatter fix [skip ci]

* fix tumbleweed build

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Co-authored-by: Joseph Donofry <rubberduckie3554@gmail.com>

Update emoji shortcodes, rework how codegen works

Fix AppData XML to make it pass validation

refactor: replace QString constructors with QStringLiteral

Fix image copying on windows

Fix room settings and emoji verification being cut off

- The translation key needs the .qm files to be included to work (so it's useless right now; the CMake
script needs to be adjusted to install those files and make this key work properly)
- The Purism custom keys don't seem to be relevant anymore (so that's another useless thing)
- The donation key needs an URL to be useful (the FIXME is still left so it can be readded later)

This time also generate the pri files, whatever they are.

See https://learn.microsoft.com/en-us/windows/msix/desktop/desktop-to-uwp-manual-conversion#optional-add-target-based-unplated-assets

There is no use case for those afaik and they do break our replacement
in the frontend. Let's instead strip them out in the sanitization step,
since there are no valid attributes defined for the del tag currenlty.

In theory we could also strip out all attributes here, but that seems
excessive for now.

Fixes https://github.com/Nheko-Reborn/nheko/issues/1693

fixes #1699

Remove reference to unmaintained AUR helper