Docs: Consolidate "Importing Designs" Guide and Adjust Tab Styling

[zihanKuang]

Notes for Reviewers

This PR fixes #578

Documentation Updates (/docs)

• Consolidated guides into a page for importing designs, now located at getting-started/importing-designs.md. An alias has been added.
• Structured content into a tabbed interface, with a tab for each infrastructure type (Kubernetes Manifests, Helm Charts, Docker Compose, etc.).
• Clarified supported packaging formats and import requirements for each type.
• Added GIFs to demonstrate import methods (Kanvas UI, Cloud UI, and Drag & Drop).
• Included a FAQ section.
• Added cross-references to documentation for exporting designs, plans, and GitHub integration.

Styling Fix (/assets/scss)

• Reduced the gap property for the .tab-body class from 3rem to 1rem.
• Reasoning: The 3rem value created vertical spacing between paragraphs within tabs, affecting readability. I have confirmed that this change corrects the layout on the "Importing Designs" page and does not cause issues on pages that use the tab component.

Unsure About Location

Should this file remain in the "Getting Started with Designs" section, or does it need to be moved to the "Exploring Designer" section?

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[leecalcote]

Good work. 🙂

Please follow up on the Kustomize .zip/.tar question and blog post.

[leecalcote]

Please move drag and drop to first place and consider hiding the other import options in tab panes.

[zihanKuang]

Hi @leecalcote,

I've published the blog post here: https://discuss.layer5.io/t/unleash-visual-power-import-your-configs/7144
I've also fixed the issues in the docs:

• Update Import Design Methods and Add Archive Support Notes #669
• Prioritize Drag and Drop for Data Import #670 (I've applied tabs to other methods as well)

You can check the webpage here: https://docs.layer5.io/kanvas/getting-started/import-designs/