Fix the SkillWise Logo in Dark Mode

[UdaySharmaGitHub]

Please assign me this issues under Hacktoberfest 2024
Logo Having a background which make looks odd in dark theme

[github-actions]

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[github-actions]

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[abhagangwar712]

Hello @PriyaGhosal , please assign me this issue to make the logo look more effective in darkmode.