Revert "LPS-45768 Language keys of chat portlet are not loaded"

This reverts commit 75f45f6d05639c61062fb369bad5eaa339fc1498.
Revert "LPS-45860 Add missing portal.properties reference in liferay-hook.xml"

This reverts commit 0c718c239cdc0011b7265660a68392af5db85ffd.
Revert "LPS-45860 Add missing language references in other liferay-hook.xml files as well"

This reverts commit 4387d06ed8feae2d2f1214bc940c6cdaf78fdef0.
Revert "LPS-45860 Miss language properties in liferay-hook.xml file"

This reverts commit 23f12cf132faac162b5e846b8c35d52345064ce7.
LPS-45412 Fix xss issue in kb portlet
LPS-45626 Reloading list of calendars after calendar edition