make pre-filled values on entity settings 'selectable' first off

[Mariusthvdb]

The request

When editing an entity in the UI the field for Entity ID is selectable, allowing for easy fixing of the desired text, without having to completely re-fill out the field.

However, the fields for Name Override and Icon Override are not selectable, though the pre-filled text is given. If one wants to edit this field, the full field needs to be re-written. Even if only a single character or part of the pre-filled text would need to be changed

The alternatives

Additional information

originally the Entity Id was

binary_sensor.hvb_macbook_pro_hvb_macbook_pro_microfoon

as still reflected in the Name Override field. Entity_id was a simple select/cut procedure. Name Override needs a full retype.
Btw, after one has edited that, one Can select/edit.