Private lobby toggle donation (#1752)

## Description:
Resolve #1652 

1. Add the ability to toggle **gold donations** and **troop donations**
for private lobbies
~2. Add relevant translations.~
3. Refactor `canDonate` to be specific to gold and troop donations 
4. Add placeholders for singleplayer mode if this is to be extended to
support that too.
5. Add Tests for Donate logic

### Screenshots:
<img width="1643" height="1788" alt="image"
src="https://github.com/user-attachments/assets/82b93400-a1f0-45f0-8b2b-a7f78dc0c3e9"
/>

_Private Lobby_

### Smoke Tests


![donatetroopsprivatelobby](https://github.com/user-attachments/assets/c6690bbc-958e-48a1-9cf1-e2b361dfb1b2)
_Testing Troop Send In Private Lobby_


![donatetroopsprivatelobby2](https://github.com/user-attachments/assets/698c7603-6b4b-4da7-91ab-7bdc38bb49a5)

_Troop Send Complete In Private Lobby_


![testtradepublicteams](https://github.com/user-attachments/assets/1010332c-3f38-4644-9218-46aa7141f578)
Confirming that public teams still works


## 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
- [X] I have read and accepted the CLA agreement (only required once).

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

DISCORD_USERNAME: cool_clarky

---------

Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>
Co-authored-by: Drills Kibo <59177241+drillskibo@users.noreply.github.com>

src/core/game/PlayerImpl.ts

@@ -572,7 +572,7 @@ export class PlayerImpl implements Player {
     return true;
   }
 
-  canDonate(recipient: Player): boolean {
+  canDonateGold(recipient: Player): boolean {
     if (!this.isFriendly(recipient)) {
       return false;
     }
@@ -583,6 +583,36 @@ export class PlayerImpl implements Player {
     ) {
       return false;
     }
+    if (this.mg.config().donateGold() === false) {
+      return false;
+    }
+    for (const donation of this.sentDonations) {
+      if (donation.recipient === recipient) {
+        if (
+          this.mg.ticks() - donation.tick <
+          this.mg.config().donateCooldown()
+        ) {
+          return false;
+        }
+      }
+    }
+    return true;
+  }
+
+  canDonateTroops(recipient: Player): boolean {
+    if (!this.isFriendly(recipient)) {
+      return false;
+    }
+    if (
+      recipient.type() === PlayerType.Human &&
+      this.mg.config().gameConfig().gameMode === GameMode.FFA &&
+      this.mg.config().gameConfig().gameType === GameType.Public
+    ) {
+      return false;
+    }
+    if (this.mg.config().donateTroops() === false) {
+      return false;
+    }
     for (const donation of this.sentDonations) {
       if (donation.recipient === recipient) {
         if (