Consider using JS-native database library instead of RocksDB

[joao-paulo-parity]

Problem: We currently use RocksDB for the databases. There's no problem with using it and it's not difficult to manage, but it requires us to deal with C/C++ toolchain on CI (

command-bot/scripts/generateDockerfile

Line 6 in 4c7c641

ROCKSDB_BUILD_DEPS="build-essential python3"

) and locally as well.

Since there's no requirement tying us to this database and we do not rely on any specific feature from it, we're free to modify the storage backend.

Solution: Use a database which does not rely on C/C++ so that it's easier to install and distribute the application. Disk-based key-value storage (same as RocksDB) is fine for this application since we only use 1 replica (

command-bot/helm/values.yaml

Line 5 in b19937b

replicaCount: 1

).