47484: ui: CSS modules for BarCharts components r=koorosh a=koorosh

Depends on: #47417
Depends on: cockroachdb/yarn-vendored#20
Related to: #47527

Current draft is just example for possible styles isolation with CSS modules.
It is required to make components self-contained and easy for extraction.

Before all css files were loaded into
global scope even if file was imported in
some particular module.

Now it is possible to define styles as before
and use old styles without changes, and as a
module, to do this - files has to be named as
someName.module.styl
In webpack config, `style-loader` is defined
two times with different file name matchers
to be able define style loaders with and without
modules.

`barCharts` component is a first candidate to try out css modules.
- all styles related to `barCharts` are copied(!) to `barCharts.module.styl` file,
so in case another component somehow relies on styles defined for barCharts
- it won't be affected.

Storybook is extended with stories related to `barCharts`


Co-authored-by: Andrii Vorobiov <and.vorobiov@gmail.com>