XWIKI-22395: Filter locales listed in Administration in order to ensure that the list contains only locales with the correct format

(cherry picked from commit 45a33191)

* Bulletproofing

(cherry picked from commit ac352781)

* Pair the existing setEditable(false) with an setEditable(true)
* Upgrade Netflux WebSocket WebJar to fix a bug related to how sessions with large lag are disconnected

(cherry picked from commit 04225d5b)

(cherry picked from commit 37ec9de7)

(cherry picked from commit 76ca536d)

(cherry picked from commit 3c93eec5)

(cherry picked from commit 603d4fce)

* Simplify the mail content and make the text version consistent with the HTML version
* Apply XML escaping in the HTML version

(cherry picked from commit 6696e9c0)

(cherry picked from commit af69ff12)

XWIKI-22374: Incorrect saving of annotations when there are special characters (%, *) in the document name
* Fix the way the space names are decoded when the annotation REST resources are called.

(cherry picked from commit 5204f119)

(cherry picked from commit 5a361269)

* Use the limit specified on the request, defaulting to 10 when no limit is specified.

(cherry picked from commit 7da4650c)

  * Improve test to actually check that XWikiServer page isn't created
    during the build of demo package

(cherry picked from commit 1617473d)

  * Change condition of the test to make it more reliable

(cherry picked from commit 22a10a1b)

* Prevent Prototype.js from overriding Array.from, second try

(cherry picked from commit 8e8cf7ec)

  * Fix test

  * Provide a test to check that mandatory document initializers are
    properly declared for the demo package
  * Rename and improve the test
  * Put other missing modules

(cherry picked from commit 917d730e)

* Reload the image if it appears as broken.

(cherry picked from commit 464af979)

(cherry picked from commit 1d0c7b56)

  * Add missing dependencies to ensure needed xclass are there in the
    demo package

(cherry picked from commit 4ef604e5)

(cherry picked from commit f7d57698)

(cherry picked from commit 89d96a55)

(cherry picked from commit 2fe73a62)

* Enable the Source button but disconnect the user from the realtime session while they are viewing / editing the source, and try to reconnect them when switching back if there were no source changes, or there's no one else in the realtime session.

(cherry picked from commit 80e15f5e)

Restore XWiki customization accidentally remove in the first attempt to update jsTree file to jsTree version `3.3.16`.

(cherry picked from commit b290525b)
(cherry picked from commit 92e3d413)

`jstree` less files included in `xwiki-platform-tree-webjar` were coming from version `3.3.5` (or earlier) whereas the version declared in `pom.xml` is `3.3.16`.
This commit resynchronize files originated from `jstree` to match the ones provided in version `3.3.16`.

This commit also comment out the reference to `throbber.gif` in `jstree` `mixins.less` file as the gif file is no part of `xwiki-platform-tree-webjar` and rule is override in `tree.less` to use `spinner.gif`.

(cherry picked from commit 0e88c152)
(cherry picked from commit e2a85ca4)

* Improve the CSS selector

(cherry picked from commit cb9a8766)

(cherry picked from commit b23d549f)

(cherry picked from commit 0b857ef2)

Currently translated at 76.9% (3457 of 4491 strings)

Translation: XWiki Platform/XWiki Core Resources
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-core-resources/zh/
(cherry picked from commit 2eeb08c8)

Currently translated at 100.0% (16 of 16 strings)

Translation: XWiki Platform/Help.Translations
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-platform-help/help-translations/pt_BR/
(cherry picked from commit a9076607)

* Changed the SSX type to LESS
* Replaced the former hard coded colors with values from the colorTheme.
* Added codestyle updates for the SSX - one empty line between adjacent style blocks.

(cherry picked from commit 13ca421f)

Currently translated at 100.0% (16 of 16 strings)

Translation: XWiki Platform/Help.Translations
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-platform-help/help-translations/de/
(cherry picked from commit 8bde5bcb)

  * Make methods saving the ratings synchronized so that only a single
    thread can save or remove a rating

(cherry picked from commit 373449f5)

 * Check server side if the page exists before adding a rating
  *  Hide the rating UI when the page does not exist
  * Provide new DocumentReference#extractReference API to extract
    DocumentReferenec from an EntityReference

---------

Co-authored-by: Simon Urli <simon.urli@xwiki.com>
(cherry picked from commit 3b7d494f)

XWIKI-22261: Deleted pages table table of the page index generates invalid links to permanently delete pages

(cherry picked from commit da03cbe5)

The goal here is to immediately display a feedback in the create page
dialog telling the user that the reference is wrong before they click on
create.

I performed following changes here:
  * Refactor CreateActionRequestHandler to have a clean separation
    between retrieving the reference and performing checks over
templates
  * Refactor a bit CreateAction to perform immediate checks over the
    rights and the name strategy before even checking if the template is
chosen: the goal being here to immediately provide exception if there's
a problem
  * Refactor createinline.vm to inject bootstrap modal html elements
    when used with an ajax request: the idea here is to display an ajax
modal instead of the old deprecated xwiki dialog
  * Refactor xwiki.js to use a jquery ajax call to request and display
    createinline
  * Add listener on xwiki:dom:updated events in both create.js and
    select.js to properly load them in case of dom updates
  * Provide new translations for getting better information from the
    name strategy
  * Improve a bit the template for displaying errors
  * Fix page test
  * Fix page object
  * Move translations
  * Fix typos in translations
  * Fix since

(cherry picked from commit 0d91409d)

* extract variable to avoid missusage of the quotes

(cherry picked from commit a855420b)

  * Refactor FilterBoolean so that it's closer to the implementation of
    FilterList since they share same principle of using selectize
  * Cover the usecase inside the integration test

(cherry picked from commit b568134f)