CLI: Fix qwik init

[shilman]

Closes N/A

What I did

See https://github.com/literalpie/storybook-framework-qwik/blob/main/CHANGELOG.md#040

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Greptile Summary

This PR standardizes the testing library usage across all Storybook frameworks by removing special handling for Qwik and using @storybook/test consistently.

• Modified code/lib/create-storybook/src/generators/baseGenerator.ts to remove Qwik-specific testing library condition
• Aligns with Qwik framework's migration to @storybook/test in v0.4.0
• Simplifies testing setup by using a single consistent package (@storybook/test) across all frameworks
• Removes technical debt from framework-specific testing library variations

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