welcome content

[dpgraham4401]

Description

This PR makes some small UI modifications to make the user experience less bland, name with the home page. We've added a Getting Started accordion and a card with links to the certain parts of the application and small explanation.

it adds 2 new components,

1. UnderConstruction a card we're using to show that a that page is still under construction.
2. NewManifestBtn a simple button that takes an optional siteId prop and returns a button to navigate the user to create a new manifest either for any of their sites or for the specified site ID.

I've also added react-table as a dependency, I plan on using that in the manifest table
relevant to #415 and #401

Lastly, we've updated a couple dependencies for the front end per dependabot's recommendations and the backend deps as well.

Issue ticket number and link

relevant to #253

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings