add import, somehow missing?? (#3113)

If this PR fixes an issue, link it below. If not, delete these two
lines.
Resolves #(issue number)

## Description:

add import, somehow missing??

## 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/JoinLobbyModal.ts

@@ -27,6 +27,7 @@ import {
 import { getApiBase } from "./Api";
 import { getClientIDForGame } from "./Auth";
 import { crazyGamesSDK } from "./CrazyGamesSDK";
+import { JoinLobbyEvent } from "./Main";
 import { terrainMapFileLoader } from "./TerrainMapFileLoader";
 import { BaseModal } from "./components/BaseModal";
 import "./components/CopyButton";