Update components: Alert, Banner, Field, BulkErrors

[daigof]

- Alert:

• updated styles
• bolded text (optional),
• avatar image (optional),
• cta content (optional),
• cut text beyond 2 lines (...)
• updated docs and story

- Banner: updated styles similar to alerts, updated docs and story

- New VerificationMessages Components (replaces BulkErrors):

• This is a separate component used inside Field so for errors and success messages lines new stylings is done there
• updated docs and story

- Field:

• Support for success messages so error prop is no longer used instead you use messages and messagesType
• Removed all bottom spacing that allowed slide down animation to happen without moving below fields.
• Now Field has a fixed margin bottom of 24px. Hints and errors still slide down fine.
• Optional bolded text now
• updated docs and story

Review app: https://curology-radiance-pr-208.herokuapp.com/

- Other Fixes: Fixed Accordion knobs leaking in all other components.

[benkolde]

@daigof the only thing I can see is with the CTA alert border, can we make it have an opacity of 0.1? So it looks like a faint white line. Other than that these look GTM! 👍