KIT-93: [react-kit] <Footer /> component

[mitchellmarkoff]

What changes were made?

Adds an implementation of a <Footer /> component to react-kit per the re-theme designs.

Where were the changes made?

react-kit

How have the changes been tested?

Storybook & tests

Additional information

Don't forget to add a changeset if needed!

[changeset-bot]

🦋 Changeset detected

Latest commit: f6e994a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@pantheon-systems/react-kit	Minor
@pantheon-systems/nextjs-kit	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[CobyPear]

The horizontal space seems off in a few places - looks like the elements should make it 300px tall, currently it's at 156px.

We'll need a white version of the logo. id if it's as easy as copying the current svg and changing the fill colors or if it's more involved, you can export the svg from the Figma file.

The text sizes seem off compared to the design.

[mitchellmarkoff]

Lots of updated to the structure of the component here. I played around with the styles and this should be the correct sizing now (landed at 299px tall after confirming the correct spacing was being used), the text still looks slightly different compared to the designs but I am using the specified text sizes outlined in Figma so I am not sure what that is attributed to exactly.

[CobyPear]

Looking much better, still a few px off in a few places:

The logo should be 64x64, but it looks to be 64x65.

This 14px bottom margin should be 16px.

Almost there though!

[CobyPear]

One small thing and I think this is good to go after that. Looks great!