Improve storage

CHDataManagement/Model/Post.swift

@@ -73,9 +73,7 @@ final class Post: ObservableObject {
 
     @discardableResult
     func update(id newId: String) -> Bool {
-        do {
-            try content.storage.move(post: id, to: newId)
-        } catch {
+        guard content.storage.move(post: id, to: newId) else {
             print("Failed to move file of post \(id)")
             return false
         }