Swap css import in the injected header style-consolidated stylesheet

[micahchiang]

Description

We recently discovered that the global stylesheet for our web components is being imported into style-consolidated.scss, but the only thing that's really needed is css variables from css-library. This import should be updated to directly import our css-library variables instead.

Tasks

• Change this import: @import '~@department-of-veterans-affairs/component-library/dist/main.css'; to @import '~@department-of-veterans-affairs/css-library/dist/tokens/scss/variables.scss';
• verify the injected header continues to work by running the proxy-rewrite application locally

Acceptance Criteria

• [ ] Above tasks have been completed

[caw310]

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