[REF] theme_cobalt, *: migrate from deprecated t-esc to t-out

[SergeBayet]

*: theme_graphene, theme_kiddo, theme_odoo_experts, theme_paptic, theme_test_custo

This commit updates all instances of the deprecated t-esc attribute within the web_editor and website modules to use the recommended t-out attribute.

See also :

• https://github.com/odoo/odoo/pull/168191
• https://github.com/odoo/enterprise/pull/65501

task-3573251