- Improve multilanguage in help and dns module and merge all language

interface/web/designer/lib/lang/es.lng

interface/web/designer/lib/lang/es_form_edit.lng

interface/web/designer/lib/lang/es_form_list.lng

interface/web/designer/lib/lang/es_form_show.lng

interface/web/designer/lib/lang/es_module_edit.lng

interface/web/designer/lib/lang/es_module_list.lng

interface/web/designer/lib/lang/es_module_nav_edit.lng

interface/web/designer/lib/lang/es_module_nav_item_edit.lng

interface/web/designer/lib/lang/es_module_show.lng

interface/web/designer/lib/lang/ru_module_nav_edit.lng

interface/web/dns/lib/lang/bg_dns_a_list.lng

interface/web/dns/lib/lang/bg_dns_soa_list.lng

interface/web/dns/lib/lang/bg_dns_template_list.lng

interface/web/dns/lib/lang/de_dns_a_list.lng

interface/web/dns/lib/lang/de_dns_soa_list.lng

interface/web/dns/lib/lang/de_dns_template_list.lng

interface/web/dns/lib/lang/en_dns_a_list.lng

interface/web/dns/lib/lang/en_dns_soa_list.lng

interface/web/dns/lib/lang/en_dns_template_list.lng

interface/web/dns/lib/lang/es.lng