Improve the latest blocks view

[AlexITC]

The latest blocks view doesn't provide as much information as we could

Expected behavior

The latest blocks view is rendered by querying the blocks API and sorting by the time in descending order, it paginates the results and allows the user to navigate to older blocks.

When the user is at the 1st page, we keep polling the server for new blocks, when the user is in another page, we don't poll the server for new blocks to avoid inconsistencies while navigating through the pages.

It would be useful to render the value transferred in each block.

Actual behavior

The latest blocks API returns the 10 latest blocks only, they are retrieved directly from the xsnd, hence, there is no pagination.