div issue in DSFR header brand top

[sachanobi-sensei]

In login>Template.tsx at line 75 div should be replaced by a span

I can create a pull request for it ^^

[garronej]

Yes please!

[sachanobi-sensei]

I've created a pull request with the fix and a small update to the getIsDark -> form_admin_policy ^^
If I see other issues I'll try and help with them as well