feat: add gain responsive

src/pages/HomePage.tsx

@@ -0,0 +1,39 @@
+import Button from '../components/Button/Button';
+
+function HomePage({
+  dspCount,
+  connectedCount,
+  onAddDSP,
+}: {
+  dspCount: number;
+  connectedCount: number;
+  onAddDSP: () => void;
+}) {
+  return (
+    <div className="card panel">
+      <dl className="specs">
+        <div className="spec">
+          <dt>Connected</dt>
+          <dd>
+            {connectedCount} DSP{connectedCount !== 1 ? 's' : ''}
+          </dd>
+        </div>
+
+        <div className="spec">
+          <dt>Devices</dt>
+          <dd>
+            {dspCount} DSP{dspCount !== 1 ? 's' : ''} configured
+          </dd>
+        </div>
+      </dl>
+
+      <div className="panel-actions">
+        <Button variant="primary" onClick={onAddDSP}>
+          Add a DSP
+        </Button>
+      </div>
+    </div>
+  );
+}
+
+export default HomePage;