LEARNER-1694

Fix a11y failure

Fix header styling

Fix layout issues

Further layout fixes

FEDX-375

Following the commit ae9c6869, we can see the cookie consent template was loaded from footer template.
The login and registration templates do not load footer, so the cookie consent template is not being loader either.
With this fix, the cookie consent template is being loaded from navigation template, so it is shown in login and registration pages as well.

May improve performance.
TNL-3538

Serve branded footer JSON/HTML/CSS/JS from an API endpoint
in the branding app.  Refactor OpenEdX and EdX.org footer templates
to use the Python version of the API, ensuring that the API
values are consistent with the footer included in main.html.

Detailed changes:

* Added footer API end-point to the branding app.
* Footer API allows the language to be set with querystring parameters.
* Footer API allows showing/hiding of the OpenEdX logo using querystring parameters.
* Deprecate ENABLE_FOOTER_V3 in favor of the branding API configuration flag.
* Move no referrer script into main.html from the edx footer template.
* Rename rwd_header_footer.js to rwd_header.js
* Cache API responses.

Authors:
Awais Qureshi, Aamir Khan, Will Daly

Don't mix tabs and spaces!

<nav> element needs to include aria-label or aria-labelledby which
causes issues for the screen readers.

TNL-1510

[OPEN-444]

OPEN-307

Remove Jobs, News
Change "Vision" to "About"

Move the open edx logo inside the div

Adding a bunch of placeholder views.

indenting.

Making some styles work against LMS sass.

Adding back the old edx footer and associated icons, with a feature flag.

We need to use an Open edX footer by default (and that's what all non-edx.org
instances should base their footer off) and only use the edX footer on
edx.org.

This commit uses `SITE_NAME` to determine which footer to use.

Sites using theming or micro-sites with a `SITE_NAME` not ending in `edx.org`
should not be affected.

DOCTYPE to the top of the file.

Let staticfiles determine the footer URLs

fixes template errors

keep tos untranslated

formatting fixes

the actual urls