feat(language): add Thai 1K, 5K, 10K, 50K, and 60K (@JNX03) (monkeytypegame#6498)

Author: JNX03

frontend/src/ts/constants/languages.ts

@@ -119,7 +119,15 @@ export const LanguageGroups: Record<string, Language[]> = {
   turkish: ["turkish", "turkish_1k", "turkish_5k"],
   irish: ["irish"],
   galician: ["galician"],
-  thai: ["thai", "thai_20k"],
+  thai: [
+    "thai",
+    "thai_1k",
+    "thai_5k",
+    "thai_10k",
+    "thai_20k",
+    "thai_50k",
+    "thai_60k",
+  ],
   tamil: ["tamil", "tamil_1k", "tanglish", "tamil_old"],
   kannada: ["kannada"],
   telugu: ["telugu", "telugu_1k"],