MIgrate to react router to remove UI state from redux store

[danobot]

Much of the metadata info in the store should be moved to URL params.
Things like the selected note or filters applied to the note list.
This is a technical dept.

Data to move to query params:

• filters on note list
• global search queries

Move to path:

• selected notebook
• selected note

routes:

• /notebook/1535/note/2433

Implementation steps:

• Introduce Router component and routes at root level
• Update actions that store UI state to instead modify the URL path and params
• Update components that depend on this data to read it from path/params instead.