Show header information of the gedcom file on the side panel (#252)

* Show header information of the gedcom file on the side panel #251

* Format creation date in HEAD section

src/sidepanel/side-panel.tsx

@@ -37,7 +37,7 @@ export function SidePanel({
         id: 'tab.settings',
         defaultMessage: 'Settings',
       }),
-      render: () => <ConfigPanel config={config} onChange={onConfigChange} />,
+      render: () => <ConfigPanel gedcom={data.gedcom} config={config} onChange={onConfigChange} />,
     },
   ];