example images editor

[DerGernTod]

since we got rid of our custom dropdown entries, we can provide a possibility to upload example images for specific fur color

• pick a dropdown field to show examples (usually 'Fellfarbe...')
  • map editabledropdown->id to editableformfield->id name (gives you all dropdown formfields)
• get all fur colors from that dropdown field
  • editableoption contains all dropdown options, and a ParentID that contains the dropdown id
  • editableformfield contains the dropdown id and the Title (Fellfarbe)
• create a multiupload field for each fur color

this might be even easier: we could extend the userforms dropdown cms fields to allow for one or multiple image uploads per dropdown option.

current issues:

• [x] upload form field is not rendered properly in cms grid field column (error: form not set)

frontend implementation:

• [x] properly show multiselect
• [x] ux for multiselect (noone knows ctrl, how on mobile?)
• [x] get and show examples

[DerGernTod]

we still have to think about how to show this properly, also on mobile (there's no mousemove and hover events on mobile)