vote for winner (#1565)

## Description:

Have at least 2 clients and majority vote to decide a winner

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

---------

Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>

src/server/GameServer.ts

@@ -65,6 +65,11 @@ export class GameServer {
 
   private websockets: Set<WebSocket> = new Set();
 
+  winnerVotes: Map<
+    string,
+    { winner: ClientSendWinnerMessage; ips: Set<string> }
+  > = new Map();
+
   constructor(
     public readonly id: string,
     readonly log_: Logger,
@@ -191,6 +196,7 @@ export class GameServer {
       }
 
       client.lastPing = existing.lastPing;
+      client.reportedWinner = existing.reportedWinner;
 
       this.activeClients = this.activeClients.filter((c) => c !== existing);
     }