XWIKI-18624: xwiki-tomcat9-mysql postinstall fails at upgrade on Debian when the tomcat9 service is stopped and disabled

[Misc] Replace the zip flamingo resource artifact by a jar one so that we can write integration tests for templates in the flamingo skin
* Remove unneeded dependency which is actually causing conflicts (brings legacy and non legacy deps leading in duplicate classes)

[Misc] Replace the zip flamingo resource artifact by a jar one so that we can write integration tests for templates in the flamingo skin
* We don't need the extra dep anymore since it's inherited from the minimaldependencies module.

[Misc] Replace the zip flamingo resource artifact by a jar one so that we can write integration tests for templates in the flamingo skin

Migrates LanguageTest to docker.

Register test has to sub-classes: RegisterWithoutLiveValidationTest and RegisterFromAdministrationTest.
These classes are defining two variation points in the tests:
- the use of client side validation
- the use of the guest user registration form, or the use of the user creation modal in the administration.
All three classes are replaced by a single docker test (RegistrationIT) where the different test variations are defined using Junit 5 parametrized tests mechanism.

XWIKI-18567: The Debian package should be more strict on the constraints regarding the expected MySQL/MariaDB version

* Introduces xwiki-platform-localization-rest
** Provides a REST endpoint to retrieve the raw translation values of the requested translation keys
** api: contains the REST endpoints definitions and the jaxb model
** default: contains the default implementation of the REST endpoints
* Introduces xwiki-platform-localization-test-docker
** Adds functional tests for the localization REST endpoint
* Declares xwiki-platform-localization-rest-default in the runtime dependencies of xwiki-platform-distribution-war-dependencies

[Misc] Apply xar:format after XCOMMONS-2180 (Make sure that all XAR XML files are using XML 1.1 when using the xar:format mojo)

Currently translated at 100.0% (23 of 23 strings)

Translation: XWiki Platform/Tour.HomepageTour.Translations
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/tour-homepagetour-translations/fr/

- Wait added on ApplicationHomePage#clickAddNewEntry to prevent access to the name field before it is displayed.
- AddEntryTest (in xwiki-platform-distribution-flavor-test-ui) migrated to docker as AddEntryIT (in xwiki-platform-appwithinminutes-test-docker).
- Adding the missing nested test in AllITs
- Improves the sorting page objects

- WizardTest replaced by WizardIT in xwiki-platform-appwithinminutes-test-docker
- Shared constants move to dedicated PO

- Add testMultipleSelect inherited from AbstractListClassFieldTest to StaticListClassFieldIT
- Move isReadOnly up to ListClassFieldEditPane
- Move testMultipleSelect to DBListClassFieldTest
- Use ListClassFieldEditPane#isReadOnly in DBListClassFieldTest#testMultipleSelect
- Remove the now unused AbstractListClassFieldTest

* [misc] Migrates StaticListClassFieldTest to a docker integration test: StaticListClassFieldTest replaced with StaticListClassFieldIT on xwiki-platform-appwithinminutes-test-docker

[Misc] Fixes StaticListClassFieldTest#testItemsEditor for the current integration tests resolution (#1539)

Reordering items with large label when configuring a static list can be difficult when the item labels are long and the screen width small.
This was making StaticListClassFieldTest#testItemsEditor fail.
We are shortening the reordered item label to make the test pass, until the items UI component is fixed (see XWIKI-18343).

Sets explicitly all the registration form fields to be independent of the state of the form before the begining of the test.

XWIKI-17174: Object editor loads too slowly when there are a large number of xobjects/xproperties to load

  * Fix the ObjectEditPane PO to ensure the object information are not
    already displayed before loading or displaying them, and use a more
generic method name (the fact that information are loaded or just
displayed should remain an implementation details for the test)
  * Improve ObjectEditPage PO to allow deciding to expand each xobject
    or not when getting the xobjects of a class. This might be
interesting for improving test perf in the future.

XWIKI-17174: Object editor loads too slowly when there are a large number of xobjects/xproperties to load

  * Fix SkinxTest by ensuring objects are properly loaded

  * Add the map to check expected logs and ignore warnings being
    expected logs
  * Initialize the maps with logs from reset password

Currently translated at 100.0% (2 of 2 strings)

Translation: XWiki Platform/Main.WebHome
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/main-webhome/es/

XWIKI-17174: Object editor loads too slowly when there are a large number of xobjects/xproperties to load

  * Add page object test method to load information and wait on the
    object editor
  * Use this new method in tests using the object editor

  * Fix log warning in old xwiki pages
  * Fix missing condition in htmlheader
  * Add exception for webstandards tests on deprecated pages