Currently, bold style intensity on text is lost when switching from default
browser mode to full-screen mode for viewing e Learning Course content.
This happens due to the use of the `fw-light` class in full screen.
This class property is font-weight: 300 !important, so it overrides the
font-weight style property in the child element of this class.
This commit solves this issue by removing the `fw-light` class in the
full-screen record set.
task-2850325
closesodoo/odoo#91732
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>