fix: stacks manage page when user deletes profile

add: allow moderators to view deleted posts

crates/core/src/model/communities.rs

@@ -238,6 +238,8 @@ pub struct Post {
     pub comment_count: usize,
     /// IDs of all uploads linked to this post.
     pub uploads: Vec<usize>,
+    /// If the post was deleted.
+    pub is_deleted: bool,
 }
 
 impl Post {
@@ -260,6 +262,7 @@ impl Post {
             dislikes: 0,
             comment_count: 0,
             uploads: Vec::new(),
+            is_deleted: false,
         }
     }