added abilty to edit and delete collections

lib/widgets/edit_dialog_widgets/edit_dialog_actions.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart'
+    show TextButton, FloatingActionButton, Icons;
+import 'package:flutter/widgets.dart';
+
+class EditDialogActions extends StatelessWidget {
+  const EditDialogActions({super.key, required this.onSavePressed});
+  final VoidCallback onSavePressed;
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: Text('Cancel'),
+        ),
+        FloatingActionButton(onPressed: onSavePressed, child: Icon(Icons.save)),
+      ],
+    );
+  }
+}