Discord and OFM advert added (#2380)

## Description:

Adds a win modal for OFM and the main discord. Adds needed translation
keys and an OFM picture back to the resources file

## 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:

Iamlewis

---------

Co-authored-by: evanpelle <evanpelle@gmail.com>

resources/lang/en.json

@@ -512,7 +512,13 @@
     "exit": "Exit Game",
     "keep": "Keep Playing",
     "spectate": "Spectate",
-    "wishlist": "Wishlist on Steam!"
+    "wishlist": "Wishlist on Steam!",
+    "ofm_winter": "OpenFront Masters Winter Tournament!",
+    "ofm_winter_description": "Join the competitive tournament and compete against the best players",
+    "join_tournament": "Join Tournament",
+    "join_discord": "Join Our Discord Community!",
+    "discord_description": "Connect with other players, get updates, and share strategies",
+    "join_server": "Join Server"
   },
   "leaderboard": {
     "title": "Leaderboard",