Currently entering custom urls will be missing characters if they
contain unicode.
Steps to reproduce:
1. Open Promote dialog
2. Enter a custom url that contains unicode (e.g. `Nội dung có Dấu`)
3. Output: `n-i-dung-c-d-u`
Expected output after this commit: `noi-dung-co-dau`
closesodoo/odoo#105195
X-original-commit: 3c1cd65e2eb44c5d2cb695afad19c58f24bde8b1
Signed-off-by: Romain Derie (rde) <rde@odoo.com>
Huy Le
c605a93042