[feature] developer hub and docs styling
[Fix] Widget Button Toolbar, vertical space between buttons

- Where `.sticky-buttons` is used (Widget Button Toolbar from widget-settings-ui-components), now applying `margin-bottom: 10px` to both buttons and anchor tags within
Merge pull request #71 from stulees/bug/widget-button-toolbar-vspace

[Fix] Widget Button Toolbar, vertical space between buttons
moved docs sidebar to the project itself
jumbo card main link hover state
Merge branch 'master' into shared-folders

Conflicts:
	dist/css/rise.min.css
	src/ui-components/app-header.scss