* Got the basis covered, now I need to style all this
* Corrected and upgraded Share window
* Changed the routes again, and set correct design
* Made some of the requested changes
* Removed PreviewFrame errors
* Redesigned Preview Header
* Corrected style of the FullView
* Corrected most of the css mistakes
* Corrected logo size
- Set the preview canvas to `display:block` to remove vertical spacing
caused by the default value, which was making a full-height canvas cause
vertical scrolling, and the vertical scrollbar caused horizontal
scrolling
- Wrap the preview content in a container with `position:relative` and
no other visible content, so that the full-height iframe excludes the
height of the preview frame header, preventing it from going beyond the
height of the page
