[Bug]: Features page hero and sections have uneven spacing and card styling

[Aryan-Srivastava]

Consisely describe the issue

• On feature page, the hero section, PageHeader have uneven alignment and spacing.
• The seal image on mobile device looks not in place and should only be present on the desktop devices.
• "Getting to know Podman" section cards doesn't have any background and is not distinct at all.

Upload screenshots or screen recordings

LLM Policy

• This issue is human-written, and folow up comments will also be human-written