Search failure obvious for user.
Search failure obvious for user.

Before this patch, when a user searched something in the shop and no results were yielded, there was no clue that the problem might be the search query itself.

After this patch, this UX becomes more obvious:

- *(0 found)* appears next to search button.
- _No results found for **"search term"**_ appears clearly in the middle of the page.

This commit closes #14359

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo