v1.2.0 - Bug Fixes for Energy Dashboard corrupted stats

I am sorry for the rapid speed of these changes. Due to the nature of the tank's data refresh periods, some things can't be fully flushed out or confirmed immediately. Please bear with me as we begin to normalize this repo.

What's Changed

• Fix propane energy consumption and cost statistics by @skircr115 in #7

Full Changelog: v1.1.0...v1.2.0