Fix typo in gamgaer -> gamegear

emus/settings.py

@@ -321,7 +321,7 @@ GAME_SYSTEM_DEFAULTS = {
         "name": "Sega Model 3",
         "emulator": "Supermodel",
     },
-    "gamgear": {
+    "gamegear": {
         "name": "Game Gear",
         "color": "3FA3C4",
     },