templates/roster - minor formatting changes in the roster table
templates/roster - minor formatting changes in the roster table

A few changes were made to modify the rendering of the roster
table, in particular, the ID column is now right-aligned and
the right-margin is increased, the overall table width is
reduced to 98%, and the table is centered (horizontally).

Signed-off-by: Adriaan van Wijngaarden <b1112bd3dd1dff79f63cda434e713ed36d32abf6@gmail.com>

ihadzic/jim,ihadzic/jim,ihadzic/jim