Fixed invert wave animation

[nishchay17]

Fixed wave animation when inverted, issue number #34

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🔍 Inspect: https://vercel.com/anup-a/svgwave/HPWhs9rEEvbFwuQcGM9GBJTK6uHf
✅ Preview: https://svgwave-git-fork-nishchay17-main-anup-a.vercel.app

[anup-a]

@nishchay17 Thanks for the PR. can you please resolve the conflicts and recommit it.