Smalls defects with actions management

[aruku]

While doing the same changes as in #221, I also found these 2 small defects.

If I explicitly set the delete action in the config for both edit and form keys, the actual button in the interface doesn't show the FA icon because it lacks the i element inside.

And also if I set the same action for both new and form keys, the delete button appears in the new view, which doesn't make sense.

[javiereguiluz]

I can't reproduce this error.

1. When using only the edit config:

easy_admin:
    entities:
        MyEntity:
            edit:
                actions: [{ name: 'delete', icon: 'minus-circle' }]

2. When using only the form config:

easy_admin:
    entities:
        MyEntity:
            form:
                actions: [{ name: 'delete', icon: 'minus-square' }]

3. When using both the edit and form config:

easy_admin:
    entities:
        MyEntity:
            form:
                actions: [{ name: 'delete', icon: 'minus-square' }]
            edit:
                actions: [{ name: 'delete', icon: 'minus-circle' }]

[aruku]

I was in a hurry and I write it down wrong: there is no need to use both keys (edit and form), just one of them. And I meant when using the default icon for the button, that is, without specifying a custom one like you are doing (using just actions: [delete]). Also, for the second issue, the delete button appearing in the new screen, it doesn't have the FA icon either.

I just checked again and both problems are completely reproducible; I can push a branch if you need it. Also, I just saw that it happens too in the show view.

It looks like it doesn't use the default FA icon when you specify the action but not the icon.

[javiereguiluz]

@aruku thanks for the explanation. I now fully understand the problem and I can confirm it as a bug. I'm working to fix it.

[javiereguiluz]

This issue has been fixed in #230