Code Insights [FE]: Restructure code insights fe codebase

Created by: vovakulikov

Background

We never got time to pick any project structure for code insights pages. Since the code insights codebase is getting bigger and bigger we need to revisit the project structure there because if we won't do it really soon we won't be able to reuse our components properly inside and outside of the code insight scope (pages)

Why is this important

Since we want to move closer to the core workflows we need to think how we would do it in terms of shared components and shared features that we may want to have something else besides code insights pages.

Proposal

At the moment there is RFC about project structure and naming. @unclejustin I think we should try to solve the project structure for the code insights project first and then share this experience and things that we will discover during this in the RFC above.