feat(Attachment): add title

#10423 backport

src/structures/MessageAttachment.js

@@ -181,6 +181,17 @@ class MessageAttachment {
     } else {
       this.flags ??= new AttachmentFlags().freeze();
     }
+
+    if ('title' in data) {
+      /**
+       * The title of this attachment
+       * <info>This will only be available if the attachment name contains special characters.</info>
+       * @type {?string}
+       */
+      this.title = data.title;
+    } else {
+      this.title ??= null;
+    }
   }
 
   /**

typings/index.d.ts

@@ -2160,6 +2160,7 @@ export class MessageAttachment {
   public proxyURL: string;
   public size: number;
   public readonly spoiler: boolean;
+  public title: string | null;
   public url: string;
   public waveform: string | null;
   public width: number | null;