* Store and reuse room list placeholder avatars and last messages
* Cache and reuse HomeScreenRooms
* Reduce RoomSummaryProvider diff collection time
* Promote more logs to info
* Slighty tweak RustTracing to make it easier to configure
* Move TimelineProvider and RoomTimelineController item processing to background queues
* Prevent the timeline from stopping an ogoing decelerating scroll when starting backpaginating
Various logging fixes:
* imported the ObjCWrapper and updated the MXLogger. Also added back support for app containers
* updated MXLog.swift from El and fixed/improved its logging format
* updated most app log strings
* Remove unnecessary swiftlint rule
* Various tweaks following code review
* Added back type annoation on MXLogger logFiles method
* Fix generated Swift-ObjC header name