Add NPC creation and titles retrieval functionality in Admin module

- Implemented createNPCs method in AdminController to handle NPC creation with specified parameters including region, age, title, and count.
- Added getTitlesOfNobility method in AdminController to retrieve available titles for users.
- Updated adminRouter to include new routes for creating NPCs and fetching titles.
- Enhanced navigationController and frontend localization files to support new NPC creation feature.
- Introduced corresponding UI components and routes for NPC management in the admin interface.

frontend/src/i18n/locales/en/navigation.json

@@ -62,7 +62,8 @@
                 "logentries": "Log entries",
                 "edituser": "Edit user",
                 "database": "Database",
-                "mapEditor": "Map editor"
+                "mapEditor": "Map editor",
+                "createNPC": "Create NPCs"
             },
             "minigames": "Mini games",
             "m-minigames": {