feature requests

Some of the requests below already have an issue associated, the others still need one, putting them here to keep track

- don't "unconfidential" addresses for display/qr
- usd price
- client-side unblinding
- xpub lookups
- display asset icons
- social sharing preview image with tx/address data
- pagable last mempool transactions
- address autocomplete search
- block timestamp shown as "ago"
- total block reward/fees (single block page and/or on homepage list)
- more stats - hashrate, difficulty, adjustment estimates, etc
- show known OP_RETURN-based meta protocols
- label transactions that seem lightning-related as such
- visual graph explorer
- miniscript decompiler