Added import statement for json with translations

src/utils/languages.js

@@ -21,6 +21,7 @@ import bg from '@/assets/locales/bg.json';
 import ko from '@/assets/locales/ko.json';
 import sk from '@/assets/locales/sk.json';
 import da from '@/assets/locales/da.json';
+import cs from '@/assets/locales/cs.json';
 
 // Language data - Next register your language by adding it to this list
 export const languages = [