This commit fixes an issue introduced in #118966. For the mobile preview
feature of email marketing, styles used to be loaded by rendering an "empty"
template with the necessary styles. These styles, however, are no longer
imported in a template, but instead in mass_mailing's manifest.
The fix is to manually load the bundle and create the link tags to add the style
to the mobile phone preview.
Task-3465776
closesodoo/odoo#133400
X-original-commit: b2796d8016be83a1d08f28ef48e98db90c07da69
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
miad-odoo
2e3b13c040