Allow user to sort uplinks table

Current ordering of uplinks list (which is the order of uplinks received) is currently opaque to the user. This issue proposes allowing the user to sort the uplinks table in order to better understand best/worst signal, closest/furthest hotspot, etc.

Sorting would be controlled by clicking the table head for the respective column.

ex: Distance column is shown sorted closest to furthest, with focus/hover state represented for non-touch devices.

Start by locating the uplinks table and its column definitions; no source files or tests are named in the issue. Review how the current received order is produced, then verify that clicking each applicable header changes the ordering and that the distance example sorts from closest to furthest with the described non-touch focus or hover state.

Written by the indexing model from the issue text.