UI: huge refactor

[DimaAmega]

This pr improves react router by providing type safe wrappers

React router v7 is type safe, but i don't like the idea of running separate react-router typegen command to generate types, my opinion/approach is: we already have all these types in src code

Improvements/Changes:

• Strong type safety around routing stuff (links, search params, redirects, loaders, actions, url params)
• Better declarative actions api: one route action contains a few named actions export actions = Record<ActionName, ActionHandler<ActionBody>> so one fetcher works with one specific action on page and they are linked by the correct types
• Add default error boundary to the route automatically if not provided

Minor improvements:

• Better control of bundled chunks