Customization tab improvements

Hi, I know this tab has been designed just like in the backoffice, but here are some improvements I suggest that would make it easier to use, as per the app's main purpose:
- Add "delete field" button. If you see the image attached, right now there is no way you can delete the first, second or third text fields, for instance. The only way to achieve this is reducing the numer of text fields and renaming all fields, since reducing the number of text fields starts deleting from the bottom. If you have several languages as in my case you have to change the labels for all languages, which can be pretty time-consuming. A simple button to delete selected field that would automatically update the number of text fields would be great.

I am thinking perhaps there even is no need for the "Text fields" quantity box. It could be replaced by a "add text field" button and "remove text field" button that would automatically update this number in the background, this is just an idea.