fix: only allow 4 uploads at once

crates/app/src/routes/api/v1/communities/posts.rs

@@ -41,6 +41,12 @@ pub async fn create_request(
         }
     }
 
+    if images.len() > 4 {
+        return Json(
+            Error::MiscError("Too many uploads. Please use a maximum of 4".to_string()).into(),
+        );
+    }
+
     let mut props = Post::new(
         req.content,
         match req.community.parse::<usize>() {