[fixes #80351344] Workspace activity date bug fix
[fixes #80403386] Hovercard font change
stylin' revisions to the dashboard cards in "your workspaces" widget.
additionl revisions to the spec for the stylin' updates.
revising so that it hooks onto the correct class name
minor revision to make the else class a semantic name
additional visual stylings to make no-comments fade into bg, while has-comments is more foreground
adding some hover styling to the card in pure css.
tweak to the hover color of the card for highlighting.
code cleanup and whitespace only
Merge branch 'mm-dashboardCardStyling' of https://github.com/Chorus/chorus into mm-dashboardCardStyling