add tests for filecheck: do not 'load' css files that do not exist
add filecheck: do not 'load' css files that do not exist
update Changes
fix tests
Merge branch 'feature/filecheck' into develop
use functional api of Mojo::JSON as the OO api was deprecated in Mojolicious 5.54
prepare release 0.05
Merge branch 'release/0.05'