packagekit: fixed overflow colors & detail style
packagekit: fixed overflow colors & detail style

It would be better to fully strip all HTML for the text in the details
`td` within the code instead of the CSS. There's some level of this
happening already, but this CSS ensures fonts and blocks get restyled as
inline with inherited style.

martinpitt/cockpit,andreasn/cockpit,andreasn/cockpit,garrett/cockpit,cockpituous/cockpit,andreasn/cockpit,mvollmer/cockpit,cockpituous/cockpit,martinpitt/cockpit,andreasn/cockpit,mvollmer/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,garrett/cockpit,cockpit-project/cockpit,garrett/cockpit,garrett/cockpit,andreasn/cockpit,martinpitt/cockpit,mvollmer/cockpit,cockpit-project/cockpit,deryni/cockpit,deryni/cockpit,deryni/cockpit,mvollmer/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,andreasn/cockpit,andreasn/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,deryni/cockpit,moraleslazaro/cockpit,deryni/cockpit,cockpituous/cockpit,cockpituous/cockpit,deryni/cockpit,cockpit-project/cockpit