Switch entirely to dynamic room list entries (normalizedMatchRoomName brings the same behavior as the old implementation) and cleanup

ElementX/Sources/Application/AppSettings.swift

@@ -38,7 +38,6 @@ final class AppSettings {
         case notificationSettingsEnabled
         case swiftUITimelineEnabled
         case pollsInTimeline
-        case dynamicEntriesEnabled
     }
     
     private static var suiteName: String = InfoPlistReader.main.appGroupIdentifier
@@ -224,7 +223,4 @@ final class AppSettings {
 
     @UserPreference(key: UserDefaultsKeys.pollsInTimeline, defaultValue: false, storageType: .userDefaults(store))
     var pollsInTimelineEnabled
-    
-    @UserPreference(key: UserDefaultsKeys.dynamicEntriesEnabled, defaultValue: true, storageType: .userDefaults(store))
-    var dynamicEntriesEnabled
 }