[FIX] web: prevent mobile keyboard popping up on tablet

Before this commit, when loading a view containing a searchbar on a
tablet, the device's keyboard is appearing once the searchbar's field is
autofocused.

Thanks to the backport of the mobile OS detection (see PR
odoo/odoo#75455 ), we are now able to properly target mobile OS
(independent of the screen's resolution) instead of only small screens.

closes odoo/odoo#75781

Signed-off-by: Adrien Dieudonné (adr) <adr@odoo.com>