web generator: replace ID in table with authors

[Andros-Spica]

The table in the library web page displays the module ID, which should not be the focus and may give wrong impressions (credits to the submission author only, submission date, etc).

We should replace this column with one presenting the list of authors (mind limiting the length of text actually displayed, in case there are many authors).

We might want, however, to keep the IDs as a searchable field in the table interface.