proposalsDataProvider uses deprecated graphql field

[edd]

Description

https://github.com/vegaprotocol/frontend-monorepo/blob/develop/libs/proposals/src/lib/proposals-data-provider/Proposals.graphql#L451-L454

This query should use proposalNode instead of node. Not doing so leads to the Proposals list on Explorer not showing batch proposals.

The missing proposals:

Steps to Reproduce

1. Go to https://explorer.vega.xyz/governance
2. Note the lack of batch proposals
3. Check the network response

### Tasks
- [ ] Update proposalsDataProvider to use proposalNode for ProposalListQuery