$match-case in uBO can be used only with regexp rules

uBO supports only with regexp rules: 
https://github.com/gorhill/ublock/wiki/static-filter-syntax#match-case:~:text=only%20for%20Regular%20Expression

<img width="542" height="51" alt="Image" src="https://github.com/user-attachments/assets/613c7e64-398c-47ae-af73-20521399bf8f" />

These rules are rejected, so can be removed from uBO versions of filters.