add spanish to config Merge branch 'master' into add-lang-spanish Update 2020-04-04 adde Spanish (42% translated) Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitnex/GitNex/pulls/353 Reviewed-by: M M Arif <mmarif@swatian.com>