* Add block height to price carousel
source block height from mempool.space API
https://mempool.space/docs/api/rest#get-block-tip-height
* Add block height to SSR, clean up fragment query
* Cache block height for 1 minute, not 30 seconds
use `numWithUnits` for block height label
* Replace mempool.space API with LND API call
---------
Co-authored-by: Keyan <34140557+huumn@users.noreply.github.com>