ImagesTable/Instance: open cockpit's file browser for local imgs

Uses `cockpit.jump` to prevent the page actually loading, which makes it
very easy to navigate back to image builder.

src/Components/ImagesTable/Instance.tsx

@@ -1,4 +1,5 @@
 import React, { Suspense, useState } from 'react';
+import path from 'path';
 
 import {
   Alert,
@@ -429,5 +430,18 @@ export const LocalInstance = ({ compose }: LocalInstancePropTypes) => {
     return <></>;
   }
 
-  return <div>Filepath to disk: {options.filename}</div>;
+  const href = "/files#/?path=" + encodeURIComponent(path.parse(options?.filename).dir);
+  return (<Button
+        component="a"
+        target="_blank"
+        variant="link"
+        onClick={ev => {
+          ev.preventDefault();
+          cockpit.jump(href, cockpit.transport.host)
+        }}
+        href={href}
+        isInline
+    >
+      Open in File browser
+    </Button>);
 };