feat: Templates (#1399)

* Migrations
* New from template
* fix: Don't allow public share of template
* chore: Template badges
* fix: Collection active
* feat: New doc button on template list item
* feat: New template menu
* fix: Sorting
* feat: Templates onboarding notice
* fix: New doc button showing on archived/deleted templates

app/components/Empty.js

@@ -1,20 +1,8 @@
 // @flow
-import * as React from "react";
 import styled from "styled-components";
 
-type Props = {
-  children: React.Node,
-};
-
-const Empty = (props: Props) => {
-  const { children, ...rest } = props;
-  return <Container {...rest}>{children}</Container>;
-};
-
-const Container = styled.div`
-  display: flex;
-  color: ${props => props.theme.slate};
-  text-align: center;
+const Empty = styled.p`
+  color: ${props => props.theme.textTertiary};
 `;
 
 export default Empty;