Display betrayal count (Continue #744) (#849)

## Description:
. #744 became a mess. Rewrote it


![Screenshot](https://github.com/user-attachments/assets/0e43547f-514a-4e93-9bbc-d022d8dfb75c)

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:
dovg

resources/lang/en.json

@@ -402,6 +402,7 @@
   "player_panel": {
     "gold": "Gold",
     "troops": "Troops",
+    "betrayals": "Number of betrayals",
     "traitor": "Traitor",
     "alliance_time_remaining": "Time Remaining",
     "embargo": "Stopped trading with you",

src/client/graphics/layers/PlayerPanel.ts

@@ -308,6 +308,16 @@ export class PlayerPanel extends LitElement implements Layer {
                 </div>
               </div>
 
+              <!-- Betrayals -->
+              <div class="flex flex-col gap-1">
+                <div class="text-white text-opacity-80 text-sm px-2">
+                  ${translateText("player_panel.betrayals")}
+                </div>
+                <div class="bg-opacity-50 bg-gray-700 rounded p-2 text-white">
+                  ${other.data.betrayals ?? 0}
+                </div>
+              </div>
+
               <!-- Embargo -->
               <div class="flex flex-col gap-1">
                 <div class="text-white text-opacity-80 text-sm px-2">

src/core/game/GameUpdates.ts

@@ -118,6 +118,7 @@ export interface PlayerUpdate {
   incomingAttacks: AttackUpdate[];
   outgoingAllianceRequests: PlayerID[];
   hasSpawned: boolean;
+  betrayals?: number;
 }
 
 export interface AllianceRequestUpdate {

src/core/game/PlayerImpl.ts

@@ -123,6 +123,7 @@ export class PlayerImpl implements Player {
     const outgoingAllianceRequests = this.outgoingAllianceRequests().map((ar) =>
       ar.recipient().id(),
     );
+    const stats = this.mg.stats().getPlayerStats(this);
 
     return {
       type: GameUpdateType.Player,
@@ -169,6 +170,7 @@ export class PlayerImpl implements Player {
       ),
       outgoingAllianceRequests: outgoingAllianceRequests,
       hasSpawned: this.hasSpawned(),
+      betrayals: stats?.betrayals,
     };
   }