[FIX] website_profile: _prepare_user_value edit tl ok

In courses home page, we use _prepare_user_value to get values from
search strings as render values.

But for example this cause an issue in case of edit_translations, it
has no value but if present is set to `{'edit_translations': True}` in
context.

But _prepare_user_value will set it to context as:

  {'edit_translations': ''}

Which make translation not work on page that used
`_prepare_user_value(kw)` to get values for rendering.

opw-2305816
closes #55444

closes odoo/odoo#55457

X-original-commit: 11c5daae47b50c26ceebe8feb736352b7a27a85b
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

addons/website_profile/controllers/main.py

@@ -51,6 +51,7 @@ class WebsiteProfile(http.Controller):
         return user_sudo
 
     def _prepare_user_values(self, **kwargs):
+        kwargs.pop('edit_translations', None) # avoid nuking edit_translations
         values = {
             'user': request.env.user,
             'is_public_user': request.website.is_public_user(),