v0.1.2

What's Changed

• Refactor: Add Appstate, clean up init() by @boojamya in #49
• Dependency update by @boojamya in #52
• Implement Prometheus metrics to track wallet balance by @boojamya in #53
• Refactor listener; add flush by @boojamya in #58

Full Changelog: v0.1.1...v0.1.2