Adding the label name as a CSS class can break styling and other
behavior when the label name has a special meaning in CSS. E.g. the
"container" label was displayed at 100% width because it was interpreted
to be a bootstrap container layout element.
Signed-off-by: Julius Volz <julius.volz@gmail.com>
This fixes an issue where the /new/targets page will not load when there
are jobs with invalid CSS characters in them, such as the
namespace/service/0 form used by the Prometheus Operator.
Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>