refactor: use named container query for Columns component

[brandonmcconnell]

Summary

Refactors the Columns component to utilize a named container query, columns-container. This change explicitly scopes the responsive styling of the Columns component, preventing potential unintended interactions with other unnamed container queries on the page. By using a named query, the component's responsive behavior becomes more robust and predictable.

The @mintlify/components package version has been updated to 1.0.13 to reflect this change.

Test Plan

Verify the responsiveness and layout of the Columns component, particularly within a container, using the updated InsideContainer story in Storybook. Ensure the grid columns adjust correctly at different container sizes.

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Note

Low Risk
Low risk: this is a small styling-scope change limited to the Columns responsive Tailwind container query classes plus a Storybook demo update.

Overview
Updates Columns to use a named container query (columns-container) for its responsive grid classes, scoping container-driven breakpoints to avoid collisions with other container query contexts.

Updates the InsideContainer Storybook wrapper to declare the named container, and bumps @mintlify/components to 1.0.13 with a corresponding changelog entry.

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