[Misc] Remove dialects that we don't use when generating the hibernate.cfg.xml file so that the examples match what we use

Currently translated at 100.0% (3 of 3 strings)

Translation: XWiki Platform/Jetty listener
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/jetty-listener/zh/

XWIKI-17754: Allow to force-download attachments with a given mimetype even if they are added by a PR user

  * introduce a new property to list the mimetypes to force-download
  * improve a bit the documentation about whitelist/blacklist properties
    to explain the limitations for PR users
  * Refactor the check in DownloadAction to decide if the file should be
    served inline or as attachment
  * Refactor DownloadActionTest and provide some more tests to check the
    various conditions

This reverts commit f3ab2ed2.

  Introduces the main wiki refactoring configuration source that always look at the main wiki documents
    The configuration is now resolved by looking for a value:
        In the current wiki
        Then in the main wiki
        Then in xwiki.properties
        If no value is found, returns the default value.

* Add doc in the config file

* Use the voted naming rule for xwiki.properties configuration options

* Disable strict mode by default

XWIKI-17439: Enable pre filtering and new event store by default
* refactor livemail based on pre filtering
* various improvements

XWIKI-17516: Enable Hibernate JMX mbeans by default for runtime monitoring of hibernate sessions and queries
XWIKI-17517: Enable Apache DBCP JMX mbeans by default for runtime monitoring of database connection pool status

  * Upgrade nu validator
  * Rely on new implementation of rome
  * Reset the locale for the validator to avoid wrong DTD-related
    errors.

  * Reverting until https://github.com/validator/validator/issues/994 is
    fixed.

This reverts commit 7f418297.

* enable prefiltering and solr event store by default

[Misc] Align to 120 chars + consistently use 'key = value' format (with spaces) + small improvement to the "refactoring.rename.useAtomicRename" property desc

* Add configuration option in xwiki.properties and script service API to expose it.