[Dropdown/Select] CFPB Styling -- Parity

[shindigira]

Changes

• Dropdown Indicator Container -- caret should flip between up/down arrows
• Dropdown Indicator Container -- change to width/height: 2.1875em
• Dropdown Text -- should be #101820 color.
• Dropdown -- Height should be 2.1875em.
• Dropdown -- During errors, the right part (caret container) should have the normal border color.
• The Dropdown component should pass the id to the Checkbox component (MultiSelect with Checkboxes)

Reference(s)

https://cfpb.github.io/design-system/components/selects

[meissadia]

@shindigira Can you also take a look at the unit tests for Dropdown (yarn vitest Dropdown). I think they've been failing since #176 but I didn't catch it then. I'd also be glad to work on fixing those if you have other priorities, just let me know.

[natalia-fitzgerald]

Content review:

• Shouldn't "Single Select Disabled" be a state that can be turned on/off (like we do for buttons) versus a Type? If it remains as a type change to sentence case "Single select (disabled)
• Remove: "As a controlled version" type
• Remove: "Single select default value"
• Note: Tags still have to be added to the DS and then brought into the DSR