This reverts commit 8ae2e450.

refs #21064 [finc] codestyle check: install dependencies for codesniffer (difffilter) and php-cs-fixer

* also see #21054

* $HOME/bin/codestylechecker/php-cs-fixer3 fix --config=$HOME/bin/codestylechecker/vufind.php-cs-fixer.php_cs module/fid/src/Service/

* with minimal changes in GetIt ViewHelper - will be refactored later

* also changes visibility for member variable

refs #21063 [fid] changes after using PHP CS Fixer 3.1.0 instead of 2.14.0 (friendsofphp/php-cs-fixer)

* PHP CS Fixer 3.1.0 is used in VuFind8
* working just with test/vufind.php-cs-fixer.php ruleset from VuFind8
** with updated ruleset
** some rule names / settings changed because of fixer version
* running by command:
** ../VuFind8/vendor/bin/php-cs-fixer fix --config=../VuFind8/tests/vufind.php-cs-fixer.php module/fid

* vendor/bin/phpcbf --standard=tests/phpcs.xml module/fid/
* vendor/bin/php-cs-fixer fix --config=tests/vufind.php_cs module/fid
* using PHP_CodeSniffer 3.6.2 instead of 3.4.0 (squizlabs/php_codesniffer)

* configure style based icons in separate config file iconMapping.ini
* specify mapping by type and set defaults for finc (transfered and simplified from record-icon-class.phtml)
* fetch single or multiple facets in recordViewHelper and merge them - specified by type and concatenateKeys
* remove obsolete templates record-icon-class.phtml, record-icon-class, record-icon-sprite, and record-icon-sprite-class
* map icons by facetAvail (default)
* add mapping by format (alternative)
* add additional translations
* use lowercase for format icon mapping

* add template for multiple lines with horizontal rows in one table data
* add css classes for more detailed margins
* add translations for aditional titles, TODO: remove from de_15 and rk_le

* escape url manually (coming from VuFind)
* translate label again (was falsely removed on previous commits)
* enable automatic label escaping by removing 4th parameter

* TODO PR / refactoring of link templates

* improve sourcecode

* move translations into new text domain LiberoAccount

* add src for ajax skeleton img
* fix for cover: avoid exception for empty file name (FincMissing)
* log exceptions of wachtl loan history call

* improve sourcecode