Adding viewport meta tag.

[Diksha Sharma]

I would like to add viewport meta tag to /Sheheroes_WatchOS/web/index.html.

I would be adding some important values to it like viewport and content as it is an important tag to mitigate the virtual viewport on narrow screen devices.
It also controls layout on mobile browsers. It will be good to add this tag to "SheHeros"

Thus, I request @hiashutoshsingh to please /assign me this issue.
POINTS-25