feat(#39): format large numbers with compact display (1.2B, 900M, etc.)

[yousefsaad12]

Description

This pull request adds a utility to format large numerical values using compact notation (for example, 1,200,000,000 → 1.2B) to improve readability in the Crypto dashboard.

Fixes #39

Changes

• Added formatCompactNumber() utility using Intl.NumberFormat with notation: "compact"
• Updated components (Card.jsx, Crypto.jsx) to display formatted numbers
• Added fallback handling for smaller values

Example

Before	After
1200000	1.2M
5400000000	5.4B

Screenshot

[vercel]

@yousefsaad12 is attempting to deploy a commit to the venisha-kalola's projects Team on Vercel.

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[venisha-kalola]

add the issue number # , the original issue number which was assigned to you

[yousefsaad12]

add the issue number # , the original issue number which was assigned to you

done

[venisha-kalola]

check the latest weather.jsx, u currently have merge conflicts with the file, can u update the code and re-submit a PR without any conflicts, the version u had while PR had issues which are been resolved now
Closing this PR, hoping to see the new PR soon

[yousefsaad12]

check the latest weather.jsx, u currently have merge conflicts with the file, can u update the code and re-submit a PR without any conflicts, the version u had while PR had issues which are been resolved now Closing this PR, hoping to see the new PR soon

i make it check it please