Design.plone.contenttypes

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- Nothing changed yet.

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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]
- 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]

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- Add fields end and recurrence on event summary serializer
[eikichi18]

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- Override BandoView: in io-Comune we add new children on Folder Deepening content
and we need to proper handle it
[lucabel]
- update serializer for documento ct adding more information about modulo children
[lucabel]