Equalize team sizes (#992)

## Description:

Ensure that team sizes are equal.

Closes #841

## 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 understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

---------

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

src/core/configuration/Config.ts

@@ -29,7 +29,11 @@ export enum GameEnv {
 export interface ServerConfig {
   turnIntervalMs(): number;
   gameCreationRate(): number;
-  lobbyMaxPlayers(map: GameMapType, mode: GameMode): number;
+  lobbyMaxPlayers(
+    map: GameMapType,
+    mode: GameMode,
+    numPlayerTeams: number | undefined,
+  ): number;
   numWorkers(): number;
   workerIndex(gameID: GameID): number;
   workerPath(gameID: GameID): string;