feat: Implement blog and blog post models, routes, and services

- Added Blog and BlogPost models with necessary fields and relationships.
- Created blogRouter for handling blog-related API endpoints including CRUD operations.
- Developed BlogService for business logic related to blogs and posts, including sharing functionality.
- Implemented API client methods for frontend to interact with blog-related endpoints.
- Added internationalization support for blog-related text in English and German.
- Created Vue components for blog editing, listing, and viewing, including a rich text editor for post content.
- Enhanced user experience with form validations and dynamic visibility settings based on user input.

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

@@ -1,11 +1,79 @@
 {
-    "home": "Home",
-    "about": "About",
-    "services": "Services",
-    "team": "Team",
-    "company": "Company",
-    "consulting": "Consulting",
-    "development": "Development",
-    "mailbox": "Mailbox",
-    "logout": "Logout"
+    "navigation": {
+        "home": "Home",
+        "logout": "Logout",
+        "friends": "Friends",
+        "socialnetwork": "Meeting point",
+        "chats": "Chats",
+        "falukant": "Falukant",
+        "minigames": "Mini games",
+        "settings": "Settings",
+        "administration": "Administration",
+        "m-chats": {
+            "multiChat": "Multiuser chat",
+            "randomChat": "Random single chat",
+            "eroticChat": "Erotic chat"
+        },
+        "m-socialnetwork": {
+            "guestbook": "Guestbook",
+            "blog": "Blog",
+            "usersearch": "User search",
+            "forum": "Forum",
+            "gallery": "Gallery",
+            "blockedUsers": "Blocked users",
+            "oneTimeInvitation": "One-time invitations",
+            "diary": "Diary",
+            "erotic": "Erotic",
+            "m-erotic": {
+                "pictures": "Pictures",
+                "videos": "Videos"
+            }
+        },
+        "m-settings": {
+            "homepage": "Homepage",
+            "account": "Account",
+            "personal": "Personal",
+            "view": "Appearance",
+            "flirt": "Flirt",
+            "interests": "Interests",
+            "notifications": "Notifications",
+            "sexuality": "Sexuality"
+        },
+        "m-administration": {
+            "contactrequests": "Contact requests",
+            "useradministration": "User administration",
+            "forum": "Forum",
+            "userrights": "User rights",
+            "interests": "Interests",
+            "falukant": "Falukant",
+            "m-falukant": {
+                "logentries": "Log entries",
+                "edituser": "Edit user",
+                "database": "Database"
+            }
+        },
+        "m-friends": {
+            "manageFriends": "Manage friends",
+            "chat": "Chat",
+            "profile": "Profile"
+        },
+        "m-falukant": {
+            "create": "Create",
+            "overview": "Overview",
+            "towns": "Towns",
+            "directors": "Directors",
+            "factory": "Factory",
+            "family": "Family",
+            "house": "House",
+            "darknet": "Underground",
+            "reputation": "Reputation",
+            "moneyhistory": "Money flow",
+            "nobility": "Social status",
+            "politics": "Politics",
+            "education": "Education",
+            "health": "Health",
+            "bank": "Bank",
+            "church": "Church"
+        }
+    }
 }