Accept Readonly* arguments

I often use readonly types in the app to ensure immutable data. I have a hard time passing a read-only argument to a Click-Ui component since an immutable type is a subset of a mutable one. I'd suggest refactoring public interfaces to accept readonly types (for example, ReadonlyArray) instead of mutable ones. For example, in `Select`
https://github.com/ClickHouse/click-ui/blob/9ab8c429a75024e2c18c5a371f174e75800e485b/src/components/Select/MultiSelect.tsx#L11-L13