Design.plone.contenttypes

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- Fix upgrade step; we can't update types due to customer customizations;
we need to fix single parts of type profiles
[lucabel]
- Remove limit to "assessore_di_riferimento" in UO
[lucabel]
- Add upgrade-step to add missing metadata for image captions.
[cekk]
- Fix typo in Venue serializer that didn't return the right history version.
[cekk]

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- Added download xlsx of users in design-utils
[mamico]
- Change number of related assessore_riferimento
[lucabel]
- Add File to CT Documento but hide it from volto add menu
[lucabel]

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- Refactor retrieveContentsOfFolderDeepening to be compliant with https://github.com/RedTurtle/redturtle.bandi/pull/25.
[cekk]
- Return None in geolocation converter also if coordinates are 0.0.
[cekk]

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- Added the metadata preview_caption and image_caption. An upgrade step is not necessary because the metadata will primarily be used for new content.
[mamico]
- add SEO behavior to File
[mamico]
- Fix sorting in scadenziario-day endpoint.
[folix-01]
- Check servizi view: remove illegal characters.
[daniele]
- Removed Document from addable types of Documento CT.
- Removed moduli limitation on Documento CT serializer.
[eikichi18]

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- Update it translations
 [lucabel]

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- Add dependency with collective.volto.blocksfield >= 2.2.0 and install it to have all blocks indexed in block_types index.
[cekk]
- Do not use eea.api.taxonomy because it is deprecated.
[cekk]