[FIX] website_blog: fix select to comment
[FIX] website_blog: fix select to comment

before this commit, the selected text was no more quoted in the comment.

This commit closes #29148

closes odoo/odoo#29486
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo