Add pleroma filtering config during upgrades

src/freedombone-app-pleroma

     read_config_param PLEROMA_DOMAIN_NAME
     read_config_param PLEROMA_EXPIRE_MONTHS
 
+    pleroma_add_filtering
+
     if ! grep -q "/media/" /etc/cron.daily/pleroma-expire; then
         rm $pleroma_expire_posts_script
     fi