FEATURE: ckeditor download option

[NicoleNitschke]

What I did

• added option "downloadable" to the CkEditor in link editor options
• changed link editor checkbox styling - label is now beside instead below the checkbox

How I did it

• added the new checkbox similary to "nofollow" and "target='_blank'" options

How to verify it

• check it out, in your ckeditor options add the following in your yaml:

    text:
      type: string
      ui:
        inline:
          editorOptions:
            linking:
              download: true

Before:

After:

Note: the new option needs to be added to the documentation

[Sebobo]

Thx!
We will need an additional PR to adjust the docs in Neos.Neos/Documentation/References/PropertyEditorReference.rst

[Sebobo]

Please target 8.2

[crydotsnake]

Thx! We will need an additional PR to adjust the docs in Neos.Neos/Documentation/References/PropertyEditorReference.rst

I've created the pull request: neos/neos-development-collection#3912

[Sebobo]

Works as expected :)