v3.2.2 frontend tests, schema font update

Updated

• Fonts in diff & definition tabs are now monospace & same size
• Added support for use TypeScript in the client side code. A pair of components were converted to TypeScript to validate the configuration.
• Added the configuration for testing-library/react and testing-library/react-hooks, so unit tests could be added to the client side code. A pair of tests were added to validate the configuration.
• eslint-webpack-plugin was added to avoid forgetting to fix eslint and prettier issues during development.
• Some commands on Dockerfiles were rewritten to benefit from caching when executing npm install