[UX] Add ToolTip hints for buttons and Charts

[hrshjswniii]

📝 Feature Suggestion: Add Hover Tooltips

📌 Description:
Improve user experience by adding tooltips that display helpful hints when users hover over:

• Action buttons (like "Upload", "Download", "Visualize", etc.)
• Chart elements or icons (like pie chart, bar chart, filters)

These tooltips will help users understand what each button or visual does—especially for first-time visitors.

---> I'd like to implement :

• Add title attributes for simple tooltips
• Use lightweight JavaScript/CSS-based tooltips (for better styling)
• Ensure tooltips are responsive and not intrusive

💡 Why This Helps:

• Improves usability and accessibility
• Reduces confusion without cluttering the UI

Would love to implement this as part of GSSoC '25 🚀
Please assign me if it fits the roadmap!

[github-actions]

👋 Thank you for raising an issue! We appreciate your effort in helping us improve. A maintainer from Dataverse will review it shortly. Stay tuned!

[hrshjswniii]

Hi @Tejas-Gupta-7 !
I'm a beginner contributor participating in GSSoC'25. I'd love to work on this feature of addition of Tooltips for better visualisation. Kindly assign this issue to me 😊

Thank you!

[Gracee-b]

Hi, I would like to work on this issue as a contributor for GSSoC 2025. Kindly assign it to me if it's available.