feat: added language guessing module

+import {franc} from 'franc';
+import langs from 'langs';
+
+function getLang(se) {
+    let langCode = "";
+    if(se.length < 10) {
+        langCode = franc(se, {minLength:`${se.length}`});
+    } else {
+        langCode = franc(se);
+    }
+    return langs.where('3', langCode).local;
+}
+
+export {getLang};
\ No newline at end of file

 {
   "dependencies": {
     "googleapis": "^100.0.0",
-    "youtube-v3-api": "^1.1.1"
-  }
+    "youtube-v3-api": "^1.1.1", 
+    "franc": "^6.0.0",
+    "langs": "^2.0.0"
+  },
+  "type": "module"
 }