Frontend refactor

Style update

Migration to shadcn. Most likely, some custom solutions based on shadcn components will need to be written somewhere.

API re-calls

Find unnecessary repeated calls caused by useEffect. In version 0.9.0, similar unnecessary failing requests were removed. Temporary debug comments can be added on the backend to show more information about incoming requests.

Re-renders

Add counters and check the frequency of re-renders. Measure how long these re-renders take: if they are fast, it does not matter; if they are slow, fix them.