update the Footer component

[alishaevn]

acceptance criteria

• linkedIn is added to the iconsList object in SocialIcon.jsx
• the 3 section columns in the middle are made smaller
  • the title is size 13
  • the links are size 13
• a link titled "Legal Notices" is placed on the left hand side underneath the copyright info (font-size: 13px)
• copyright info gets reduced to an h6
• the margin top/bottom of the footer is reduced

story

phenovista has requested a linkedIn icon be added to their footer's list of social icons. while we're updating that component, we'd like to add a few more changes as well.

screenshots

this was done using the inspect tool, so use it as a reference only

[summer-cook]

the work for this is done, but it is not yet deployed. should we make a deploy to staging column specifically for webstore stuff? @alishaevn

[alishaevn]

this was released in https://github.com/scientist-softserv/webstore-component-library/releases/tag/0.1.18