* httpclient 4 and 5 comes with the same file

* Finish removing things I had missed + add missing revapi violations (thanks Simon)

  * Add missing banned dep and related exclusion

  * Fix coverage and missing exclusion

* Also change the other languages and remove usages of the HTML macro + fix a bug in the UK translation

  * Move code and components for live email notifications with
    post-filtering to legacy modules
  * Deprecate configuration method related that check if prefiltering is
    enabled as it's now the standard
  * Remove the configuration from xwiki.properties to turn off
    prefiltering
  * Move deprecated NotificationManager to legacy
  * Move the API NotificationConfiguration#isEventPrefilteringEnabled to legacy and every implementations relying on it too

Co-authored-by: Thomas Mortagne <thomas.mortagne@xwiki.com>

XWIKI-21011: Mail resender script service API resends all mails when called from a subwiki
XWIKI-21015: Missing legacy instance APIs in distribution
* Also add missing EM categories
* Fix typo in MailResender.xml (in the "from" test)
* Make the resender scheduer job execute as XWiki.superadmin
* Male the MailResender.xml document customizable instead of demo to avoid deleting it (it's now an official feature)
* Add debug logs when resending mail
* Fix mail resender scheduler typo in description

* Add the What's New extension to XS

* Better comment

  * Add missing dependency to xwiki-platform-legacy-office-viewer in
    distribution-war-legacydependencies
  * Refactor the pom of xwiki-platform-legacy-office-viewer to not use
    aspectj anymore since it wasn't needed in the first place