Replace CLI and Streamlit GUI with "Textual" app #26
Description
Use textual, which is a TUI (CLI) that can be run in the browser as well — MAYBE exactly what we need (espectially for #27): https://github.com/Textualize/textual
TODO: Clarify: Can this also display images?! Because:
Should implement a dashboard that shows a library of documents, and for each query shows the percentage of relevance of related files. (show union of different files used)
Including progressbar.
GUI with tree view and document chunk scroll view would be nice.