feat(icons): add Info icon to Sistent

[krishnavbajoria02]

Notes for Reviewers

This PR fixes #1269

Description:
This PR refactors and standardizes the InfoCircle icon implementation in Sistent to align with existing icon patterns.

Changes Made

1. Refactored index.tsx → index.ts
   • index.tsx contained the full InfoIcon component implementation.
   • Replaced with a minimal index.ts .
2. Updated InfoCircleIcon.tsx
   • Replaced default WHITE fill to KEPPEL_GREEN_FILL.
   • Import source updated.

Screenshot/Image:

Signed commits

• Yes, I signed my commits.

[krishnavbajoria02]

The build failure appears to be related to MUI/Emotion SSR on /extension/[...component] and not introduced by this icon change.

[Bhumikagarggg]

@krishnavbajoria02 Thank you for your contribution! Let's discuss this during the website call tomorrow at 6:30 PM IST | 7 AM CST Add it as an agenda item to the meeting minutes, if you would 🙂

[Rajesh-Nagarajan-11]

@krishnavbajoria02 , Why workflow is failing ? -> Test with meshery Ui