This commit replaces Liberation Sans for Noto Sans in the default system
font stack as Liberation doesn't support font-weight: 500 and had a
fallback at 400.
Liberation Sans was the fallback font on Fedora Linux, this commit fixes
it by setting Noto Sans (variable font) as the fallback font for Fedora.
task-3076171
closesodoo/odoo#106525
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>