SP3.1: Update room settings for Spaces element-ios#5231

- Changed the Room Settings screen according to the new design
- Implemented the room access flow
- Added room upgrade support
- Implemented the room suggestion screen

RiotSwiftUI/Modules/Spaces/AddRoomSelector/Service/AddRoomItemsProcessor.swift

@@ -30,10 +30,12 @@ class AddRoomItemsProcessor: MatrixItemChooserProcessorProtocol {
     
     // MARK: MatrixItemChooserSelectionProcessorProtocol
     
-    var dataType: MatrixItemChooserType {
-        .room
+    private(set) var dataSource: MatrixItemChooserDataSource = MatrixItemChooserRoomsDataSource()
+    
+    var loadingText: String? {
+        nil
     }
-
+    
     func computeSelection(withIds itemsIds: [String], completion: @escaping (Result<Void, Error>) -> Void) {
         addChild(from: itemsIds, at: 0, completion: completion)
     }