fix: Allow selection of embeds (#1562)

* feat: Support importing .docx or .html files as new documents (#1551)

* Support importing .docx as new documents

* Add html file support, build types and interface for easily adding file types to importer

* fix: Upload embedded images in docx to storage

* refactor: Bulk of logic to command

* refactor: Do all importing on server, so we're not splitting logic for import into two places

* test: Add documentImporter tests


Co-authored-by: Lance Whatley <whatl3y@gmail.com>

* fix: Accessibility audit

* fix: Quick fix, non editable title
closes #1560

* fix: Embed selection

Co-authored-by: Lance Whatley <whatl3y@gmail.com>

app/embeds/Gist.js

@@ -6,6 +6,7 @@ const URL_REGEX = new RegExp(
 );
 
 type Props = {|
+  isSelected: boolean,
   attrs: {|
     href: string,
     matches: string[],
@@ -48,6 +49,7 @@ class Gist extends React.Component<Props> {
 
     return (
       <iframe
+        className={this.props.isSelected ? "ProseMirror-selectednode" : ""}
         ref={this.updateIframeContent}
         type="text/html"
         frameBorder="0"