Ftw.referencewidget

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- Plone5.2/6 and Python3 compatibility. [gbastien]

- Complete rewrite of widget (JS) for Plone 6 based on bootstrap 5.2 + vuejs + webpack module federation. [mathias.leimgruber]

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- Handle edge case if the context is the plone root, not a edit view on root. [mathias.leimgruber]

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- Add fake edit view for plone site root in order to make widget work on add views on root. [mathias.leimgruber]

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- Fix tinymce internal link integration for portlets. [mathias.leimgruber]

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- Fix DictRow, DataGridFieldFactory imports to be compatible with 1.x and 2.x of collective.z3cform.datagridfield. [mathias.leimgruber]

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- Set initial request_path upon widget initialization to make searching in current are possible. [mathias.leimgruber]