* adds a bunch of ui components with mock data
* build docker image with yarn.lock & yarn instead of npm
* easier to add topics, build options smarter from ENV vars
* fallback to index.html on all requests for SPA
* updates w/ black/white support, better mobile styling
* adds test components to home & dashboard pages
* adds chart.js dependency
* mqtt payload examples
* lint
* drone ci config
* eslint fixes
