implement extractor filtering by category

[longshuicy]

• backend on the get /listeners endpoint implement query parameter category: str
• frontend use radio buttons to filter

Mockups see here:
https://www.figma.com/file/5UkG4raDVAWdCxw4wqGylb/Extractor-V2?node-id=1%3A2&t=HWh5qmQmpPf2iN3U-1