You can look into the issues here, on what features are missing from the frontend.
We currently are working on improving maintainability, by converting our code base to TypeScript. Right now, it's mostly migrated, but there are still a lot of any's in the codebase. You can help out by replacing them with types!
We are in the process of migrating from Redux to redux-toolkit and redux-query.
It would be also create if you could write E2E tests with Cypress for the frontend.
You can also help by expanding the documentation.