Setup Jest for frontend unit testing

[Griffin-Sullivan]

Description

Adding the unit testing directory and dependencies for Jest unit testing. I would like to rebase this off of #290 when it's merged so I can update the github actions for testing the frontend.

Again a lot of this is carried over from ODH and removed some things that don't apply to us.

How Has This Been Tested?

npm run test:unit
npm run test:jest
npm run test:cypress-ci and npm run start:dev to ensure there's no regressions.

Merge criteria:

• The commits and have meaningful messages; the author will squash them after approval or will ask to merge with squash.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[ederign]

@Griffin-Sullivan do we need to downgrade those versions? Can we start with the most recent ones?

[Griffin-Sullivan]

Sorry not sure why I changed those. Might have happened when I was debugging and I was just using what ODH had. It's working fine with the versions we had so I changed it back.

[lucferbux]

/lgtm

Ok no particular feedback on this one, tested and it's working, we'll start porting testUtils when we start implementing model registry.

[google-oss-prow]

@lucferbux: changing LGTM is restricted to collaborators

In response to this:

/lgtm

Ok no particular feedback on this one, tested and it's working, we'll start porting testUtils when we start implementing model registry.

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[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ederign, lucferbux

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[ederign]

/lgtm