Add an action to the newly introduced FloatingDateBadge that scrolls the timeline to that day. (#5350)

and replace the TimelnieTableViewController's `floatingDateText` with a pure date.

ElementX/Sources/Screens/RoomScreen/View/RoomScreen.swift

@@ -110,7 +110,9 @@ struct RoomScreen: View {
     @ViewBuilder
     private var dateBadge: some View {
         if !isVoiceOverEnabled {
-            FloatingDateBadge(dateText: timelineContext.floatingDateText)
+            FloatingDateBadge(dateText: timelineContext.floatingDate?.formattedDateSeparator()) {
+                timelineContext.send(viewAction: .scrollToFirstItemForCurrentDate)
+            }
         }
     }