Improve field search row delete button

• Replace delete button icon by a trash icon
• Make icon bigger

added Frontend To discuss labels

The button to delete a field search is on the left. (red one, with a popup "remove field")

Perhaps it is not visible enough.

How can we highlight it ?

Ohhh okay, my bad. But we should improve it indeed.

In my opinion, we should change the icon (not intuitive enough), and maybe make it a little bit bigger.

Ok for bigger and probably it should looks like a rubbish or something like that ...

removed To discuss label

added Advanced search Priority: middle labels

changed title from Field search row cannot be deleted in advanced search to Improve field search row delete button

changed the description

assigned to @remi.bisson

removed Priority: middle label

mentioned in merge request !59

mentioned in merge request !60 (merged)