Add context menu action to remove attachments in Compose

Tusker/Screens/Compose/ComposeAttachmentRow.swift

@@ -41,6 +41,16 @@ struct ComposeAttachmentRow: View {
                             Label("Recognize Text", systemImage: "doc.text.viewfinder")
                         }
                     }
+                    
+                    if #available(iOS 15.0, *) {
+                        Button(action: self.removeAttachment) {
+                            Label("Delete", systemImage: "trash")
+                        }.foregroundStyle(.red)
+                    } else {
+                        Button(action: self.removeAttachment) {
+                            Label("Delete", systemImage: "trash")
+                        }
+                    }
                 }
             
             switch mode {
@@ -126,7 +136,9 @@ struct ComposeAttachmentRow: View {
     }
     
     private func removeAttachment() {
-        draft.attachments.removeAll { $0.id == attachment.id }
+        withAnimation {
+            draft.attachments.removeAll { $0.id == attachment.id }
+        }
     }
     
     private func editDrawing() {