[tx-robot] updated from transifex
[tx-robot] updated from transifex
[tx-robot] updated from transifex
[tx-robot] updated from transifex
Fix some issues
first commit

changed leftcontent rightcontent
into app-navigation & app-content
update settings template
some css tweaks
some updates
remove legacy CSS
remove wrong app-content rule
remove duplicate and legacy app-navigation and settings CSS
fix settings toggle and emptycontent layout