Implement chat backend and frontend scaffolding

Expanded chat backend with message reply, edit, delete, and reaction support in consumers and models. Updated routing to use chat_id. Added chat-related view stubs. On the frontend, introduced ChatLayout and ChatPage scaffolding, and routed protected routes through ChatLayout.

backend/social/chat/views.py

@@ -1,3 +1,25 @@
 from django.shortcuts import render
 
 # Create your views here.
+
+
+def get_users_chats(request):
+    return None
+
+def create_chat(request):
+    return None
+
+def invite_user_to_chat(request, chat_id: int, user_ids: list):
+    return None
+
+def delete_chat(request, chat_id: int):
+    return None
+
+def leave_chat(request, chat_id: int):
+    return None
+
+def edit_chat(request, chat_object):
+    return None
+
+def get_chat_messages(request, chat_id: int, limit: int = 50, offset: int = 0):
+    return None