Perf: optimise loading of additional language files
Perf: optimise loading of additional language files

Picked from 3d941786be

bauhouse/sym-todo-list,symphonycms/symphony-2,bauhouse/sym-todo-list,michael-e/symphony-2,symphonycms/symphony-2,michael-e/symphony-2,jensscherbl/symphony,jensscherbl/symphony