. Add `loading-skeleton.tsx` improvements

[DeFiVC]

What: Improve the LoadingSkeleton component with more variants and better animation.

Why: The current skeletons are basic. They need more variants (card grid, table, form) and smoother animation.

Scope: Add skeleton variants: CourseGridSkeleton, TableSkeleton, FormSkeleton, ProfileSkeleton. Improve animation with shimmer effect. Match actual content dimensions.

Acceptance criteria:

• Skeletons match content structure
• Animation is smooth
• Multiple variants exist
• Consistent across pages

Technical context: src/components/shared/loading-skeleton.tsx — existing LoadingSkeleton. src/components/ui/skeleton.tsx — Skeleton component.

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[mimi-esc]

@mimi-esc has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, I would love to work on this issue. Please assign

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[MaxiTech444]

@MaxiTech444 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

CAN I WORK ON THIS PLEASE?

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[CeceOs92]

@CeceOs92 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Kindly assign me this issue

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[drips-wave]

Congratulations, @CeceOs92! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@CeceOs92's PR #402 was approved and merged by @DeFiVC.

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👏 Great work, @CeceOs92! Keep contributing to ChainLearnOfficial.

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This issue has been completed by @CeceOs92 as part of the Stellar Wave Program's 8th Wave 🥳

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