Improve ingame moderation for admins (#3678)

## Description:

Players with the `admin` flare can now kick players from any game
(including public lobbies), not just the lobby creator in private
lobbies.

## 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

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

w.o.n

src/client/Main.ts

@@ -756,6 +756,8 @@ class Client {
     if (lobby.source !== "public") {
       this.updateJoinUrlForShare(lobby.gameID, config);
     }
+    const auth = await userAuth();
+    const playerRole = auth !== false ? (auth.claims.role ?? null) : null;
     const newLobbyHandle = joinLobby(this.eventBus, {
       gameID: lobby.gameID,
       serverConfig: config,
@@ -763,6 +765,7 @@ class Client {
       turnstileToken: await this.getTurnstileToken(lobby),
       playerName: this.usernameInput?.getUsername() ?? genAnonUsername(),
       playerClanTag: this.usernameInput?.getClanTag() ?? null,
+      playerRole,
       gameStartInfo: lobby.gameStartInfo ?? lobby.gameRecord?.info,
       gameRecord: lobby.gameRecord,
     });