Improve `-s` command modifier output

[LLFourn]

Right now it outputs something like:

syncing wallet with Esplora(EsploraBlockchainConfig { base_url: "https://mempool.space/api", concurrency: Some(4), stop_gap: 100 })

But it there should be more information here and it should be nicely formatted:

1. progress logging
2. when you do gun -s bet list it should mention which bets it is checking and output something useful if possible.