Added button and beginning of setup screen

src/components/SetupScreen.tsx

@@ -0,0 +1,24 @@
+import { useCallback } from 'react';
+
+import { Button } from '~components/Button';
+
+import './SetupScreen.css';
+
+export function SetupScreen() {
+  const open = useCallback(() => {
+    const url = (chrome || browser).runtime.getURL(`/tabs/PermissionRequest.html`);
+    (chrome || browser).tabs.create({ url });
+  }, []);
+
+  return (
+    <div className="disabled">
+      <h1 className="title">Le&apos;s get this set up!</h1>
+      <p style={{ paddingBottom: 25, paddingTop: 10 }}>
+        To get started, we need to setup some things first. Click the button below to continue.
+      </p>
+      <Button onClick={open} full>
+        Continue
+      </Button>
+    </div>
+  );
+}