The asset type filter consists of grouping different formats into categories. This task aims to map file format to the correct categories, as per the Figma file:

• Audio: user prefix audio/
  • .mpeg, .webm, .mp4, .ogg, .aac, .aacp, .flac, .wav, .x-wav and .mp3
• Documents: .pdf  ... anything that doesn't fall under photos/video/audio format will be categorised/mapped as documents start with application/ or text/
• Images: use prefix image/
  • all supported images formats like .jpeg .png .svg+xml 
  • image/ prefix should include support gif e.g. webp 
• Videos: user prefix video/
  • .mp4, .mpeg, .webm ...

ACs

• When clicking the Asset type filter, a dropdown should present all the different categories that were mapped according to the prefixes described above.
  • If for example there's not existing audio assets in the asset app, that option should not be presented in the filter.
• The Assets type filter is specific for assets and is only available in either Assets app and Global search (phase 3)

Designs:
Asset type filter screen mockup
Asset type dropdown component

Resources, supported types

• https://docs.magnolia-cms.com/product-docs/6.2/Authoring/Managing-assets.html#_supported_file_formats_for_preview_generation
• https://docs.magnolia-cms.com/product-docs/6.2/Modules/List-of-modules/Imaging-module.html#_output_format 
• https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types