Card consolidation and updates

[navkaur76]

Task 1 (design + dev):

• Address #3514

Task 2 (design):

Problem:

Current use of accent is confusing. By default it is grey, but purpose of accent bar is to display color.

Should Cards be:

1. Default = no accent, grey border
2. Accent = color accent, grey border

Hoverable?

1. Remove it? (Is it confusing to have hover state but no click? was an MCP requirement) or...
2. Keep it? If hoverable is true, then the accent bar color is only be displayed on hover.