feat: template for image upload

appsettings.example.json

@@ -2,8 +2,11 @@
   "JwtSecret": "this is a sample jwt secret token required for quotify - it needs to have at least 256 bits (32 bytes long)",
   "DomainName": "example.com",
   "CorsOrigins": [
-    "http://localhost:5259", "http://localhost:5258", "http://example.com"
+    "http://localhost:5259", "http://localhost:5258", "http://localhost:3000", "http://example.com"
   ],
+  "UserContent": {
+    "MaxFileSize": 5242880,
+  },
   "ConnectionStrings": {
     "DefaultConnection": "Server=server-host;Database=db-name;Username=quotify-user;Password=user-secret"
   },