Dev: Add "Refresh" data button

[ori-near]

See #87 for UX context.

Background

Currently, our treasury app relies on other services for fetching data such as account balances. When we fetch data, we cache it in storage, and only after certain conditions are met we refetch it. If a user is logged in with a previous cached session, they might not always see the latest data or changed they performed, unless they perform a hard refresh.

User Story

As a user, I want to have a way to force refresh any page so that I can see the latest data for my treasury.

Acceptance Criteria

• Add a refresh button at the top of the treasury dashboard, as shown in the mockup
• When a user clicks on this refresh button, the application should trigger a force refresh and refetch the latest data (and not read from the cache storage)

Mockup