Fix file deletion

CHDataManagement/Model/LocalizedPost.swift

@@ -79,6 +79,13 @@ final class LocalizedPost: ObservableObject {
         }
         return text.contains(string)
     }
+
+    func remove(_ file: FileResource) {
+        if images.contains(file) {
+            images.remove(file)
+        }
+        remove(linkPreviewImage: file)
+    }
 }
 
 extension LocalizedPost: LinkPreviewItem {