settings for fedwiki within web UI

src/freedombone-app-fedwiki

src/freedombone-app-pleroma

webadmin/EN/invalid_password.html

webadmin/EN/settings_fedwiki.html

webadmin/EN/settings_fedwiki_favicon.html

webadmin/EN/settings_fedwiki_password.html

webadmin/settings_fedwiki.php