ListEditor should not show Add button for Enum type

[Flaurite]

Environment

• Platform version: 7.2
• Client type: Web

Description of the bug or enhancement

See forum: topic

Minimal reproducible example

1. Create an entity with enum field
2. Create browse screen
3. Launch the app and open screen. In the filter add Enum condition with "In" operation.

• Actual behavior Add button is shown, but it does nothing as values are added automatically.