Room header UI updates (#11507)

* Fix performance issues with useRoomMembers

With the current implementation it would create a new function, with leading: true, rendering the whole throttling useless

* Add public room indicator

* Format room members count better

* Add public room test

* Add search to room summary card

* Update settings UI

* Update snapshot

* Remove default title attribute

test/components/views/elements/__snapshots__/AppTile-test.tsx.snap

@@ -120,7 +120,6 @@ exports[`AppTile for a pinned widget should render 1`] = `
               loading="lazy"
               referrerpolicy="no-referrer"
               src="image-file-stub"
-              title=""
               width="20px"
             />
           </span>
@@ -209,7 +208,6 @@ exports[`AppTile for a pinned widget should render permission request 1`] = `
               loading="lazy"
               referrerpolicy="no-referrer"
               src="image-file-stub"
-              title=""
               width="20px"
             />
           </span>
@@ -366,7 +364,6 @@ exports[`AppTile preserves non-persisted widget on container move 1`] = `
                     loading="lazy"
                     referrerpolicy="no-referrer"
                     src="image-file-stub"
-                    title=""
                     width="20px"
                   />
                 </span>