Fixes#30403.
Having tabIndex set to 0 led to keyboard focus being put on
a scrollbar container, which led to users having to tab twice
to skip a container.
This commit also removes instances of tabIndex being set to
-1 programatically for certain cases, since it is -1 by default now.
This commit also removes `outline: none` for simplebar since
that property is not needed anymore because the wrapper is
not focusable anymore.
We use "modal-body" class in informational overlays and
"About Zulip" overlay. For informational overlays, the
class is used on the element acting as scroll container
so we just rename the class to "overlay-scroll-container".
For "About Zulip" overlay, we do not support scrolling
so "overlay-body" seems a better class name.
The table-condensed class was used by bootstrap to add padding
to the table cells. But since we want padding in cells for all
tables, we added the padding CSS to the other existing CSS for
tables while removing the bootstrap CSS for tables and
"table-condensed" is not required anymore.
Ever since we started bundling the app with webpack, there’s been less
and less overlap between our ‘static’ directory (files belonging to
the frontend app) and Django’s interpretation of the ‘static’
directory (files served directly to the web).
Split the app out to its own ‘web’ directory outside of ‘static’, and
remove all the custom collectstatic --ignore rules. This makes it
much clearer what’s actually being served to the web, and what’s being
bundled by webpack. It also shrinks the release tarball by 3%.
Signed-off-by: Anders Kaseorg <anders@zulip.com>