Cache frequently used settings values in RoomContext

Signed-off-by: Robin Townsend <robin@robin.town>

src/contexts/RoomContext.ts

@@ -31,7 +31,6 @@ const RoomContext = createContext<IState>({
     canPeek: false,
     showApps: false,
     isPeeking: false,
-    showReadReceipts: true,
     showRightPanel: true,
     joining: false,
     atEndOfLiveTimeline: true,
@@ -41,6 +40,11 @@ const RoomContext = createContext<IState>({
     canReact: false,
     canReply: false,
     layout: Layout.Group,
+    showReadReceipts: true,
+    showRedactions: true,
+    showJoinLeaves: true,
+    showAvatarChanges: true,
+    showDisplaynameChanges: true,
     matrixClientIsReady: false,
     dragCounter: 0,
 });