⬆️ Update BookStackApp/BookStack to v23.12

[renovate]

This PR contains the following updates:

Package	Update	Change
BookStackApp/BookStack	minor	v23.10.4 -> v23.12

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Release Notes

BookStackApp/BookStack (BookStackApp/BookStack)

v23.12: BookStack v23.12

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Links

• Release video overview
• Update instructions
• Update details on blog

Upgrade Notices

• Page Includes - The way page include content is fetched & merged has changed significantly in this release, which in some cases may alter how included content appears on the page.

Full List of Changes

• Added simple WYSIWYG for description fields. (#​4729, #​2354, #​2203)
• Added default template option for books. Thanks to @​lennertdaniels. (#​4721, #​3918, #​1803)
• Added OIDC RP-initiated logout. Thanks to @​joancyho. (#​4714, #​4467, #​3715)
• Added new Logical Theme System event to register web routes. (#​4663)
• Updated email notifications to include the page parent chapter/book. Thanks to @​Man-in-Black. (#​4629)
• Updated and standardised DOM handling in the codebase. (#​4673)
• Updated back redirection handling to not rely on referrer headers. (#​4656)
• Updated book/chapter/shelf description character limit. (#​4085)
• Updated design of buttons to be a bit friendlier. (#​4728)
• Updated HTML exporting with better RTL handling. (#​4645)
• Updated include tag handling to be structure/DOM aware. (#​4688)
• Updated SAML2 dump debug option to include group parsing details. (#​4706)
• Updated translations with latest Crowdin changes. (#​4658)
• Updated WYSIWYG editor to allow video/embed alignment controls. (#​4727, #​3378)
• Updated WYSIWYG library TinyMCE from 6.5.1 to 6.7.2. (#​4661)
• Fixed extra paragraphs & invalid syntax when using page includes. (#​3385)
• Fixed lack of user invite via the API in certain cases. (#​4720)
• Fixed page includes leading to duplicate IDs. (#​3982)
• Fixed permission generation failure with large amounts of content. (#​4695)
• Fixed PHP mbstring deprecation warnings. (#​4638)
• Fixed SAML2 Single Logout (SLO) not invalidating session at point defined by the spec. (#​4713)

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