fix: don't allow reports to be spam deleted

crates/core/src/database/reports.rs

@@ -85,6 +85,10 @@ impl DataManager {
     }
 
     pub async fn delete_report(&self, id: usize, user: User) -> Result<()> {
+        if let Err(e) = self.get_report_by_id(id).await {
+            return Err(e);
+        }
+
         if !user.permissions.check(FinePermission::MANAGE_REPORTS) {
             return Err(Error::NotAllowed);
         }