Collective.collectionfilter

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Breaking Change:

- add Plone 6 ES6 compatible Bundle
- add Plone 6 ES6 compatible JS and SCSS resources
- add Plone 6 Javascript Bundle Infrastructure
- update Portlet Template, Plone 6 ready, use the 'cards' Element
- add Upgrade Step to remove old registry settings
- increment Version in Metadata
- add tox Test Instrastructure
- update github workflow, remove Plone 5 from matrix
[1letter]

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Breaking Change:

- Remove Plone 5.0 and 5.1 support.
[petschki]

- Add idx parameter to display_modifier call, so that we can use the index name to resolve the correct translated
taxonomy titles in collective.taxonomy. This means that the display_modifier method in the groupby_modifier adapters
needs to expect this parameter too!
[MrTango]

Features:

- Add checkbox to reverse output the filters.
[jensens]

- Support and Test Plone 6.
[jensens]

- Add a module global COLLECTIONISH_TARGETS to c.c.tiles to register other tiles with collections than plone.app.standardtiles.contentlisting.
[jensens]

Bug Fixes:

- Fix `b_start` in tiles, where the key is pre/postfixed.
Removes those from new filters too, in order to not be on a page that does not exist for the new filtered result.
[jensens]

- Not every metadata entry has an index with same name.
Ignore if not a pair.
[jensens]

- Fix/Workaround for 59 (Int fields in indexes are not working).
[jensens]

- Hide uninstall profiles from install view.
[jensens]

- Fix edge cases where "All" wasn't translated.
[agitator]

- Ensure a `GroupByCriteria`'s `sort_key_function` function `lower()` call gets a string.
[jensens]

- Fixed searches for only non-alphanumeric characters causing an exception to be displayed.
[JeffersonBledsoe]


Other:

- Code-Style Black and Isort
[jensens]

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- Updated de and ch-de translations
[agitator]

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- Use collection from context as default. `target_collection` is now used to select an alternative collection as result source.
This allows to copy and paste preconfigured collections for reuse without reconfiguring each filter element.
[agitator]

- Fix search which include the terms "and", "or" and "not"
[jeffersonbledsoe]

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- Do not render filter tiles when page gets AJAX loaded
[petschki]
- Do not add hidden field ``collectionfilter`` multiple times. Fixes 116
[petschki]

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- Separated translation display_modifier for portal_type and Type.
[iham]