Implement DXdao Treasury reports into associated category

[KeenanLukeOM]

Create category for DXdao treasury reports.

Currently only the following:

https://gateway.pinata.cloud/ipfs/QmfZdBNMtEPteG7JuTqxbxg4Zo4o4veWcenwoJs6PrsPZC

A new category should be created to accommodate these reports.