Code refactoring (#9)

* Code refactoring

* Adds metrics resource

* Adds an ability to store settings in RoadRunner KV

* Refctors metrics
- Adds an ability to get last points for metric
- Improved metrics creator
- Created metrics stores into a storage

* Refactors RPC manager
- Increases timeout for RR reconnection
- Adds Server DTO

Refctors metrics
- Improves chart creation panel

Refactors plugins UI
- stores collapsed state

Hotfix/ws (#8)

* Fixes centrifugo services

* Fixes centrifugo config

* Fixes Docker file

- Ignores dist

- Adds envs for local run
- Adds the ability to view rr config in yaml

Optimized docker image

Optimized docker image

Fixes problem with metrics nav link

Adds toast notifications and support for rr without config RPC endpoint

Update README.md

Fixes problem with running npm

Fixes problem with running