Make the repositories sorted by stars (descending) by default

Currently, the repositories in a table are randomly ordered.

To sort them either in descending or ascending directions, one would need to tap/click on the stars column header.

It is counterintuitive, moreover, taking into account, that repositories with the higher numbers of stars tend to appear on top of a table.

Additionally, it would be nice to inform the user about the current sorting direction.

Start by locating the table component and the stars-column sorting behavior. Make the initial repository order descending by stars and expose the current sorting direction in the interface; verify both ascending and descending interactions still work.

Written by the indexing model from the issue text.