UI: Install correct logos

Until now, we've been installing the UI/forms/images/obs.png asset
as the logo. However, that's not officially the logo we should
be using.

Install the correct logo assets. Add 128x128, 256x256, 512x512,
and scalable variants.

UI/xdg-data/CMakeLists.txt

@@ -19,6 +19,20 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/com.obsproject.Studio.appdata.xml
 install(FILES com.obsproject.Studio.desktop
 	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications)
 
-install(FILES ../forms/images/obs.png
+# Icons
+
+install(FILES icons/obs-logo-128.png
+	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/128x128/apps
+	RENAME com.obsproject.Studio.png)
+
+install(FILES icons/obs-logo-256.png
 	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/256x256/apps
 	RENAME com.obsproject.Studio.png)
+
+install(FILES icons/obs-logo-512.png
+	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/512x512/apps
+	RENAME com.obsproject.Studio.png)
+
+install(FILES icons/obs-logo-scalable.svg
+	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/scalable/apps
+	RENAME com.obsproject.Studio.svg)