Start refactoring by removing entirely
NotificationFilterPreferenceConfiguration since it's now useless. Remove
also calls to useMainStore/useLocalStore where needed and fix tests.
Started to define migration but not implemted yet.

  * Provide migration of filters
  * Remove options from configuration
  * Fix migration issue
  * Bulletproof a bit the migration
  * Fix property file
  * Provide unit test for the migration

Co-authored-by: Manuel Leduc <manuel.leduc@xwiki.com>