Use responsive iframe control for charts (#49) (#50)

* Use responsive iframe control to charts

* Move external Grafana link to Dashboard page

* Remove unused embedded style class

* Add button label

src/components/Controls/ResponsiveIFrame/index.jsx

@@ -0,0 +1,26 @@
+import React from "react";
+
+const ResponsiveIFrame = (props) => {
+  const { classes, src, title } = props;
+
+  return (
+    <div className={classes.embeddedWrapper}>
+      <iframe
+        style={{
+          position: "absolute",
+          top: 0,
+          left: 0,
+          bottom: 0,
+          right: 0,
+          width: "100%",
+          height: "100%",
+        }}
+        title={title}
+        src={src}
+        frameBorder="0"
+      ></iframe>
+    </div>
+  );
+};
+
+export default ResponsiveIFrame;