add translation to dashboard (Fixes: #3865)

interface/web/dashboard/dashlets/templates/modules.htm

interface/web/dashboard/lib/lang/ar_dashlet_modules.lng

interface/web/dashboard/lib/lang/bg_dashlet_modules.lng

interface/web/dashboard/lib/lang/br_dashlet_modules.lng

interface/web/dashboard/lib/lang/ca_dashlet_modules.lng

interface/web/dashboard/lib/lang/cz_dashlet_modules.lng

interface/web/dashboard/lib/lang/de_dashlet_modules.lng

interface/web/dashboard/lib/lang/el_dashlet_modules.lng

interface/web/dashboard/lib/lang/en_dashlet_modules.lng

interface/web/dashboard/lib/lang/es_dashlet_modules.lng

interface/web/dashboard/lib/lang/fi_dashlet_modules.lng

interface/web/dashboard/lib/lang/fr_dashlet_modules.lng

interface/web/dashboard/lib/lang/hr_dashlet_modules.lng

interface/web/dashboard/lib/lang/hu_dashlet_modules.lng

interface/web/dashboard/lib/lang/id_dashlet_modules.lng

interface/web/dashboard/lib/lang/it_dashlet_modules.lng

interface/web/dashboard/lib/lang/ja_dashlet_modules.lng

interface/web/dashboard/lib/lang/nl_dashlet_modules.lng

interface/web/dashboard/lib/lang/pl_dashlet_modules.lng

interface/web/dashboard/lib/lang/pt_dashlet_modules.lng