Add Smooth Fade-In Animation to Hero Section

[Janhavi078]

Implement a fade-in + slide-up animation for the hero section title and subtitle.

Animation should be smooth, taking around 1.5–2 seconds for a subtle, professional effect.

Ensure that it works well on both desktop and mobile devices.

This enhancement will improve the first impression for users visiting the site.

Makes the site feel more modern, polished, and professional.
@Rizwan102003

[Janhavi078]

please assign this issue under gssoc25 to
me @Rizwan102003

[Rizwan102003]

@Janhavi078 u can start working