Disables submit buttons on billing / upgrade page for demo
organizations since they will need to become permanent
organizations before upgrading to Zulip Cloud Standard.
Also creates an alert banner on the same page that links to
the help center article on demo organizations.
Updates sub-headers on demo organizations help center
article to match link text and to follow general convention
of using imperative verb forms in help center subheaders.
Part of #19523.
Co-authored by: Lauryn Menard <lauryn@zulip.com>
All the inputs of form has 'width: 100%' property but then
also the width of inputs were different because of box-sizing
property. The select input had 'box-sizing: border-box' style
but the others did not, so this commit adds this style to
the other inputs - text type input and the textarea input,
to fix the alignment.
Adding 'box-sizing: border-box' changes the actual height of
the normal text type input because the default input height
of 20px set by bootstrap now includes padding and border also,
so we add 'height: 30px' style to make its height same as the
select input.
Fixes#19332.
css-loader@4 broke @import statements referencing files with
extensions other than .css, unless those @import statements are
compiled away by another loader. Upstream is more interested in
arguing that such @import statements are semantically incorrect than
applying the one line fix.
https://github.com/webpack-contrib/css-loader/issues/1164
Signed-off-by: Anders Kaseorg <anders@zulip.com>