feat: Translate frontend/src/i18n/en.json in hr

82% of minimum 50% translated source file: 'frontend/src/i18n/en.json'
on 'hr'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

frontend/src/i18n/hr.json

@@ -236,8 +236,8 @@
     },
     "user": "Korisnik",
     "userCommands": "Naredbe",
-    "userCommandsHelp": "A space separated list with the available commands for this user. Example:\n",
-    "userCreated": "User created!",
+    "userCommandsHelp": "Popis dostupnih naredbi za ovog korisnika. Primjer:\n",
+    "userCreated": "Korisnik stvoren!",
     "userDefaults": "User default settings",
     "userDeleted": "User deleted!",
     "userManagement": "User Management",