Vote on a poll and end a poll (#1597)

* Fix project file

* Add vote and end poll actions

* Handle redaction

* Fix local echo behavior

* Cleanup

* Fix UI tests

* Add localisation

* Cleanup

* Fix end poll action style

ElementX/Sources/Services/Timeline/TimelineItems/EventBasedTimelineItemProtocol.swift

@@ -46,6 +46,10 @@ extension EventBasedTimelineItemProtocol {
         self is LocationRoomTimelineItem
     }
 
+    var pollIfAvailable: Poll? {
+        (self as? PollRoomTimelineItem)?.poll
+    }
+
     var isRedacted: Bool {
         self is RedactedRoomTimelineItem
     }

ElementX/Sources/Services/Timeline/TimelineItems/Items/Other/PollRoomTimelineItem.swift

@@ -35,6 +35,10 @@ struct Poll: Equatable {
     let votes: [String: [String]]
     let endDate: Date?
 
+    var hasEnded: Bool {
+        endDate != nil
+    }
+
     enum Kind: Equatable {
         case disclosed
         case undisclosed