* Fixes#276 - Rebuilt room timeline:
- Removed the need for the ListCollectionViewAdapter
- Rewrote the TimelineItemList without using introspection
- Added ReversedScrollView for laying out items at the bottom/trailing
- Rewrote TimelineProvider diffing through CollectionDifference (similar to the RoomSummaryProvider)
- Added back `scrollDismissesKeyboard` behavior
- Various other tweaks and fixes
- Fixed various warnings:
- removed async AttributedStringBuilder as AttributedString is non-sendable, made the RoomTimelineItemFactory synchronous
- removed unused virtual timeline items
- removed unused isOutgoing property from the FormattedBodyText
* Make TimelineItemContextMenuActions indentifiable and specify contextMenu identifiers
* Bump the matrix-rust-components-swift to v1.0.16-alpha
* Add changes file and changelog contribution guide
* Fix attributed string builder unit tests
* Fix Timeline on Xcode 14/iOS 16
Raise requirement to iOS 16+
Reduce pagination jumping.
Sonarcloud fixes.
Fix verification test.
Adopt if let optional { syntax.
* Remove unused ScrollViewReader
The ScrollViewReader didn't appear to change the behaviour.
* Fix warnings on Run Scripts.
Run script build phase 'SwiftLint' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase.
* moved NSRegularExpression outside of the AttributedString builder into the MatrixEntityRegex
* fixed eventId v3 regex
* added permalink builders for users, room identifiers and aliases, and events
* added timeline item permalink contextual menu actions and error alerts
* added an app wide ServiceLocator and moved the top level userIndicatorPresenter to it.
* added URL constructor that takes a StaticString and returns an non-optional
* Include Unit and UI tests in the swiftlint search paths
