Updated the HomeVC, SettingsVC and GlobalSearch UI to use theming
Removed the "fade view" gradients from the various screens
Added a simple log to the PagedDatabaseObserver to make debugging easier
Updated the FullConversationCell to also show the "read" state for messages
Updated the read receipt icons to use SFSymbols directly
Updated the PlaceholderIcon to use the PrimaryColour's as it's colour options
Created the ThemeManager and the system to control the dynamic theming
Started updating the main settings screens
Added the AppearanceViewController and connected it to the ThemeManager
Started adding theme values
Started applying theme values throughout
Updated to the latest version of GRDB
Renamed some variables for clarity
Updated the "seed viewed" banner on the HomeVC to be driven by a database setting to be consistent with other UI changes
Added migrations for contacts and started working through thread migration (have contact and closed group threads migrating)
Deprecated usage of ECKeyPair in the migrations (want to be able to remove Curve25519Kit in the future)
Changed the min OS version to iOS 13.0 (support for 'Identifiable')
Removed the alternate approaches to fetching the userKeyPair and userPublicKeyHexString (no consistently routed through the caching method)
Migrated the 'OWSIdentityManager' logic to use the new 'Identity' type
Added the 'Setting' table and got the pattern working fairly nicely (unfortunately there isn't a good way to avoid key collision without proper enums)
Updated the SessionSnodeKit to migration it's data from YDB to GRDB
Updated the SessionSnodeKit to use GRDB throughout it's logic
Morgan Pretty
Niels Andriesse