config: change language detection to "true"

interface_config.js

     APP_NAME: 'Jitsi Meet',
     NATIVE_APP_NAME: 'Jitsi Meet',
     PROVIDER_NAME: 'Jitsi',
-    LANG_DETECTION: false, // Allow i18n to detect the system language
+    LANG_DETECTION: true, // Allow i18n to detect the system language
     INVITATION_POWERED_BY: true,
 
     /**