Enhancements to overall App UI Design

[Vishnuxx]

I've been working on some updates to the app's user interface design. Here's a summary of what I've done:

• Enhanced the overall app user interface design to improve user experience and visual appeal.
• Rewrote some CSS styles in Svelte to use Tailwind CSS.

I've attached a screenshot of the new design to this pull request. Please take a look and let me know your thoughts!

Looking forward to your feedback and suggestions.