Tendermint ignores `db_dir` config when choosing where to store state

[gsgalloway]

Summary of Bug

When --db_dir is set via command line args or via config.toml, tendermint still stores its state in ~/.sommelier/data

Version

2.0.0

Reproduction Steps

Run sommelier with an overridden db_dir config to point away from ~/.sommelier/data. Check for creation of ~/.sommelier/data