Version 0.0.9.2

Another step towards 0.1, this version is based on libQMatrixClient 0.3.0.2 and includes the following changes:

• Enhancement: the "Settings" menu now has most settings that are worth exposing to the user.
• Fix (#312): Date label (and author, if you use the new-Default timeline layout) is now correctly hidden when older messages get loaded to the timeline.
• Experimental: Introduced a new compilation flag, USE_QQUICKWIDGET, switching the way QML is embedded into Quaternion; try to use it if you have problems like #355/#356.
• Unified reporting about failed network requests; show "Consent not given" errors in a user-friendly way.
• Minor fixes in CI.