Since searches in the home screen are now handled by the command palette,
some ARIA attributes are required for assistive technologies to know
what is the currently-selected result. That because the actual focus is
always on the search box, while the actually-selected result is
highlighted by toggling classes, which makes not possible anymore to
know what is the selected result for e.g. screen reader users.
For more info, see original implementation on enterprise's home menu on
[1]. This commit is just re-applying such changes here.
[1] odoo/enterprise#14511closesodoo/odoo#152147
X-original-commit: 9764e6f7fe39a10f3b04e1764110d8c274d0431a
Related: odoo/enterprise#55562
Signed-off-by: Pierre Paridans (app) <app@odoo.com>