[FIX] tools: add bdi tag as safe tag

We already have BDO tag as allowed tag in sanitized HTML that is
similar to BDI tag, so this commit also adds BDI in allowed tags.

BDI* tags make sense in email since email client can have different
orientation than Odoo (alternative is to use `<div dir="auto"></div>`).

*: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/bdi

opw-2256982
closes #52787

closes odoo/odoo#52801

X-original-commit: 68edebb0d862acb3dc14f839aaef744306c5e269
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

odoo/tools/mail.py

@@ -32,7 +32,7 @@ tags_to_kill = ['base', 'embed', 'frame', 'head', 'iframe', 'link', 'meta',
 tags_to_remove = ['html', 'body']
 
 # allow new semantic HTML5 tags
-allowed_tags = clean.defs.tags | frozenset('article section header footer hgroup nav aside figure main'.split() + [etree.Comment])
+allowed_tags = clean.defs.tags | frozenset('article bdi section header footer hgroup nav aside figure main'.split() + [etree.Comment])
 safe_attrs = clean.defs.safe_attrs | frozenset(
     ['style',
      'data-o-mail-quote',  # quote detection