Aliases for image buttons

[nathanchicken]

When specifying an image for a button, it'd be nice to be able to use aliases. This way, in different environments, staging, local etc we can better control the paths to those buttons when databases get synchronised rather than having to hope that absolute paths match up.

Thanks!

[haabe]

Modify the following line in /supercool/buttonbox/src/templates/_components/fields/buttons/input.twig

{% if option.imageUrl %}<img src="{{ option.imageUrl }}"{% if option.showLabel %} class="buttonbox-buttons__with-label"{% endif %} {% if not option.showLabel %} title="{{ optionLabel }}"{% endif %} />{% endif %}

to

{% if option.imageUrl %}<img src="{{ alias(option.imageUrl) }}"{% if option.showLabel %} class="buttonbox-buttons__with-label"{% endif %} {% if not option.showLabel %} title="{{ optionLabel }}"{% endif %} />{% endif %}