Creates new help article for supported web browsers. Also updates
links in the `/apps` landing page as well as the unsupported-browser
template and the `set-up-your-account` article.
Fixes#14732.
Adds HTML title elements to templates that extend either `base.html`,
`portico.html` or `portico_signup.html`, and that are not website
portico landing pages that will use the `PAGE_TITLE` variable to set
the HTML title element (see following commit in series).
Also, updates some templates for missing translation tags.
As a general rule, we want the title element (and page content)
translated. Exceptions that are updated in this commit are templates
used in the development environment, analytics templates that are used
by staff and templates related to Zephyr.
We're migrating to using the cleaner zulip.com domain, which involves
changing all of our links from ReadTheDocs and other places to point
to the cleaner URL.
Internet Explorer does not support `position: sticky` which improves
floating recipient bar behavior during scrolling which is one of the
issues blocking PR #9910.
IE also does not support some features that modern browsers support
hence may not super well.
This commit adds an error page that'll be displayed when a user logs
in from Internet Explorer. Also, a test is added.
Alex Vandiver
Lauryn Menard
Lauryn Menard
Khushiyant
Vishnu KS
Tim Abbott
Dinesh