migrate assignee and responsible to ui.select
change tests selector for ui.select; fix minor issues
revert bower.json unneeded changes
change status to ui.select
Merge branch 'feature/17683-migrate-to-ui-select' of https://github.com/0xF013/openproject into 0xF013-feature/17683-migrate-to-ui-select
Specify ui-select as runtime (non-dev) dependency

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Merge branch '0xF013-feature/17683-migrate-to-ui-select' into dev