More palette view options

[FiratUsta]

Currently, Chromora only has two views for the color palette, the swatch view on the main page and the fullscreen view from the URL exports. More preview options could be useful, for example an example web page view, typography view, logo view etc. These should be directly exposed to the user instead of relying on exports like the fullscreen view.

Most likely later today I will push another commit that exposes the fullscreen view to the user without exporting, which will include a new menu to the top left instead of loose buttons. These new views could be added to this menu.