Invite people in an existing room (#915)

* Handle power levels

* Add “invite” button in RoomMembersListScreen

* Refactor DI in RoomDetailsScreenCoordinator

* Add navigation to “select people” coordinator

* Add InviteUsersScreenRoomContext

* Add invite user by id api

* Updare InviteUsersScreenRoomContext

* Support disabled state on FormButtonStyles

* Handle membership in UserProfileCell

* Fix conflicts

* Refactor RoomContext -> RoomType

* Refactor UserProfileCell

* Add invite action

* Setup navigation to user flow coordinator

* Add invite logic

* Fix test build errors

* Address comments

* Fix localisations

* Update required state

* Handle error

* Move invite logic in RoomDetailsScreenCoordinator

* Add navigation from room’s members list

* Fix UTs

* Fix missing display name in RoomMemberDetails

* Add user indicator

* Add feature flag

* Add RoomDetailsViewModel UTs

* Add room details ui tests

* Add InviteUsersViewModelTests UTs

* Add UI tests

* Update UI tests

* Empty commit

ElementX/Sources/Services/Client/ClientProxy.swift

@@ -493,7 +493,8 @@ class ClientProxy: ClientProxyProtocol {
     }
     
     private lazy var slidingSyncRequiredState = [RequiredState(key: "m.room.avatar", value: ""),
-                                                 RequiredState(key: "m.room.encryption", value: "")]
+                                                 RequiredState(key: "m.room.encryption", value: ""),
+                                                 RequiredState(key: "m.room.power_levels", value: "")]
 
     private lazy var slidingSyncNotificationsRequiredState = [RequiredState(key: "m.room.member", value: "$ME"),
                                                               RequiredState(key: "m.room.power_levels", value: ""),