Move to pure TS package to reduce bundle size

[spaenleh]

In this PR:

• export this package as a pure TS package. Only transpilation step is through tsc with tsc-alias to resolve absolute paths to relative paths
• use vitejs as the bundler for component tests
• use default import on second level for mui icons
• remove unused dependencies (react-csv, ...)
• externalized dependencies like "react-i18next" and "@emotion/react" to remove bundle duplication and issues with duplicated contexts

Issues:

• the TS package is still transpiled to commonJS, because CRA and MUI can't handle handle ESM correctly.

The resulting bundle size for builder is currently around 1.2Mb versus 2.17Mb for the current main version.
Before:

After:

[pyphilia]

LGTM 🍽️