fix projects list

Select projects only with exact "username"

As described here: https://community.france-bioinformatique.fr/t/pull-request-update-status-bar/4238

-w, --word-regexp
Select only those lines containing matches that form whole words. The test is that the matching substring must either be at the beginning of the line, or preceded by a non-word constituent character. Similarly, it must be either at the end of the line or followed by a non-word constituent character. Word-constituent characters are letters, digits, and the underscore.