[IMP] base_import_module: improve module dependencies error message

Currently, when trying to import a module, if there is an error
related to dependencies, it is not shown in a decent format. For
example, technical names of the modules are being displayed in
a single line, separated by comma.

This commit makes the dependency error message readable by
displaying short description of the modules (instead of
technical names), each on a new line.

task-1830483

closes odoo/odoo#33029

Signed-off-by: Martin Geubelle (mge) <mge@openerp.com>