FEAT: Added Sweet Alert and themed it

[partha120804]

FEAT: Added Sweet Alert and themed it

Related Issue

closes #316

Checklist

• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings

Screenshots (if necessary):

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[EternoSeeker]

great !