default the html formatting settings

Author: jamesbirtles

src/plugins/HTMLPlugin.ts

@@ -112,7 +112,7 @@ export class HTMLPlugin implements HoverProvider, CompletionsProvider, Formattin
 
  const range = Range.create(document.positionAt(0), document.positionAt(rangeEnd));
 
- const settings = this.host.getConfig<HTMLFormatConfiguration>('html.format.settings');
+ const settings = this.host.getConfig<HTMLFormatConfiguration>('html.format.settings') || {};
  return this.lang.format(document, range, settings);
  }