Web [Charts]: Migrate Line chart to new smart axis components

Created by: vovakulikov

Follow up for https://github.com/sourcegraph/sourcegraph/pull/39805

Background

In https://github.com/sourcegraph/sourcegraph/pull/39805 we created a few new axis abstractiosn with label auto layout correction features. In this issue we need to migrate <LineChart /> component to these new components in order to improve UX for all code insights charts