Pinning items Feature Flag (#3063)

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenModels.swift

@@ -50,6 +50,7 @@ protocol DeveloperOptionsProtocol: AnyObject {
     var hideUnreadMessagesBadge: Bool { get set }
     var elementCallBaseURLOverride: URL? { get set }
     var fuzzyRoomListSearchEnabled: Bool { get set }
+    var pinningEnabled: Bool { get set }
 }
 
 extension AppSettings: DeveloperOptionsProtocol { }

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -34,6 +34,12 @@ struct DeveloperOptionsScreen: View {
                 }
             }
             
+            Section("Message Pinning") {
+                Toggle(isOn: $context.pinningEnabled) {
+                    Text("Enable message pinning")
+                }
+            }
+            
             Section("Room List") {
                 Toggle(isOn: $context.hideUnreadMessagesBadge) {
                     Text("Hide grey dots")