Replace blurry screenshots with clear images

[yashisrani]

• Some of the screenshots on the site are currently blurry (low-resolution or over-compressed), making it hard for users to see important details.

[ADITYA-CODE-SOURCE]

@yashisrani Hi there! I'm planning to apply for GSoC 2026 and would love to start contributing by resolving this issue. I've noticed the blurry screenshots mentioned (Issue #174) and I can replace them with high-resolution, clear versions by running the application locally.

Could you please assign this to me? Also, if there are specific pages or sections besides the ones shown in the issue that need updating, please let me know!