feat: search results nav, keyboard shortcut ...

Also implements half of the address page, adds a hook for the syncNode,
and some other miscellaneous refactors.

feat: search box boilerplate

refactor: remove most unnecessary redux hooks

fix: optimise throttle and hooks ...

In the process of fixing some hook dependencies, I introduced a bug
which caused the application to rapidly send requests to the Krist
server (luckily I was using a local Krist instance). To raise awareness
of this if it happens again in the future, I added a notification that
appears whenever the rate limit is hit. Ideally, it should never appear
in production.

refactor: clean api request code

feat: block difficulty card

chore: update file headers

feat: support custom currencies

feat: dashboard transactions listing

fix: update names on transfer

fix: sync node in redux

feat: block value card

fix: throttle ws balance refreshes

fix: small ws tweaks

feat: sync balances with websocket