Upgrade dependencies

The dependencies including the following have been upgraded to the latest if possible:

• gatsby (and gatsby plugins)
• eslint
• testing-library
• babel plugins
• percy
• firebase-tools
• material-ui
• golang (rest-api/)

The following package has been held back

• cypress (6.8.0)

Improve Use of CI

• Security related dependency updates by Snyk.
• Bump firebase-tools to 9+.
• Run e2e tests in parallel in Github Actions.
• Minor aesthetic fix in the spinner on the cards.

Enable automated testing and Use Github Actions

• Add jest unit tests for React.js components.
• Add and expand cypress e2e tests.
• Run Github Actions for new pushes.
• Updated cloudbuild.yaml for both ui and rest-api to reflect the latest changes in npm scripts.

Minimal Viable Product (MVP) Release

• Working React.js frontend and Golang backend.
• Documentation on the setup.
• Address accessibility issues pointed out by WAVE evaluation tool.

REST API only

v0.1

Push new images only on tags