Profile card add fallback UI for missing banner and avatar images

[ParasSolanki]

Current version of the component does not properly handle a case when profile handle does not have a banner image or profile image.

Solution

When there is no banner image we should fallback to background color and for avatar image use svg icon.

[saurabhdaware]

Oh I think I handle having no banner but not handling having no profile picture. Thanks for reporting.