Small updates on the process list display

Depends backend#1572 (closed)

When the creator field is available on ListProcesses, it should be displayed on the list of processes, in the current "Date" cell

• rename the "Date" column to "Created"
• remove "Created" from the content, just display "X min ago by John Doe", using the creator.display_name field

Finally make the "name" column the first one, making it clickable to access the process. When no name is set, simply display "No process name".

The ID becomes the second column, using the short ID clickable component.