Ability to limit or filter PNGs from Signature blocks in Item Update & File cards

It would be great to be able to limit or filter specific types of files from the item card. We are cc’ing external emails to bring those email threads into the update. However, that has meant that people signature block components from their email are being saved as a ‘file’. It results in 195 ‘files’ when in reality there are 4 files for the project.

Its super frustrating bc we have trouble finding those files. Is there a way to limit that or atleast filter file types?