Implement skeleton screens for all data-fetching components

[barry01-hash]

Create a reusable Skeleton component library with variants: text, card, table, chart, and avatar. Ensure skeletons match final content dimensions to reduce layout shift (CLS).

[Junman140]

@Junman140 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would want to work on this project because ive being contributing to pi network and stellar for 6 years now and i use mainly typescript, rust and javascript

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[Obiajulu-gif]

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

i will love to work on this issue

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

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

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