[UIK-5201][chore] update Design tokens docs and style-lint

[j-mnizhek]

Changelog

@semcore/stylelint-plugin

Fixed

• tokensSource Paths to the JS module with the design token map.

Motivation and Context

After the last release, we need to update docs.

Updated:

• Get started guides
• Design tokens guides

Removed:

• Grid system page

Fixed:

• Color for large metrics on the Dashboard story.

How has this been tested?

Manually with local build.

Types of changes

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• Nice improve.

Checklist:

• I have updated the documentation accordingly.

[ilyabrower]

I replaced @semcore/tools/stylelint-plugin with @semcore/stylelint-plugin
In the changelog component title should be the name from package.json