build: rebrand output artifacts to Oak and fix macOS QML deployment

- Rename macOS bundle output from Olive.app to Oak.app.
- Rename editor binary to oak-editor and render worker to oak-render-worker.
- Rename crash handler output to oak-crashhandler.
- Update worker lookup, NSIS installer, Linux desktop/AppRun, crashhandler
  symbol paths, and documentation for the new binary names.
- Update CD workflow paths and add -qmldir flags to macdeployqt so QtQuick
  / QML plugins required by KDDockWidgets are bundled, fixing the launch
  crash on macOS.
- Update user-facing GitHub URLs to OakVideoEditorCommunity/oak.

app/packaging/linux/org.oakvideoeditor.Oak.appdata.xml.in

@@ -28,8 +28,8 @@
     <p xml:lang="id">Oak Video Editor adalah aplikasi edit video bersifat non-linier yang bebas dan gratis, bertujuan untuk memberikan alternatif yang lengkap untuk aplikasi edit video profesional. Ini adalah fork komunitas dari Olive Video Editor.</p>
     <p xml:lang="fr">Oak Video Editor est un éditeur vidéo non linéaire libre visant à fournir une alternative complète aux logiciels de montage vidéo professionnels haut de gamme. Il s'agit d'un fork communautaire d'Olive Video Editor.</p>
   </description>
-  <url type="homepage">https://github.com/olive-editor/olive</url>
-  <url type="bugtracker">https://github.com/olive-editor/olive/issues</url>
+  <url type="homepage">https://github.com/OakVideoEditorCommunity/oak</url>
+  <url type="bugtracker">https://github.com/OakVideoEditorCommunity/oak/issues</url>
   <screenshots>
     <screenshot type="default"><image>https://olivevideoeditor.org/img/screenshot.1600.jpg</image></screenshot>
   </screenshots>