ipfs hash on community contracts

[vibern0]

Is your feature request related to a problem? Please describe.

The /community/list endpoint on impactMarket backend uses data from two sources, a database, and TheGraph. But as of now, TheGraph is only indexing information from the contracts.
It would be too expensive to order by country the biggest communities in a given country once there are 1000 communities in a given country and 10000 globally. The same with ordering by distance.

Describe the solution you'd like

TheGraph allows to get data from IPFS and index it together with smart contracts data. This would allow performing a single query to a single data source avoiding long queries and possible errors.

Additional context

• https://ipfs.io/
• https://thegraph.com/docs/en/developer/create-subgraph-hosted/#ipfs-on-ethereum-contracts
• https://thegraph.com/docs/en/developer/create-subgraph-hosted/#defining-fulltext-search-fields