MetaPoster: Update UI to create Poster transactions

[plor]

Metadata write updates

Updating the metadata will change from PUT requests to the daohaus service to transactions to the Poster contract. Currently any DAO member can update metadata, but we can restrict this to minion only so that DAO proposals are required to update metadata.

Discovery

All endpoints from #1844 where an update occurs will need to push to Poster contracts using the schema defined in #1835

[plor]

Tackle this first so there is data available to read in #1844 rather than backfilling data.

[plor]

Changes to:

• [ ] any DAO/update API calls
• [ ] will need a createPosterTransaction lego

Lots of spots this happens:

• [ ] summon -> DAOprofile
• [ ] settings metadata form -> DAOprofile
• [ ] settings custom theme -> customTheme
• [ ] boost activations -> boostRecord, proposalConfig
• [ ] boost settings -> boostRecord
• [ ] proposal playlist -> proposalConfig

DAO notifications boost and discord boost both do special API stuff (interact with discord API and discourse API), so we still need an API endpoint for this.