[FIX] web_editor: stuck after manual link creation

Before this commit:

When we try to create link manually and try to press enter cursor gets stuck.

After this commit:

Now when we create link manually and press enter cursor moves to next line.

Task-2745129

closes odoo/odoo#105961

X-original-commit: 4d14fa55
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>