Add functionality to hide plugins from quick access menu (#468)

frontend/src/hidden-plugins-service.tsx

@@ -0,0 +1,34 @@
+import { DeckyState } from './components/DeckyState';
+import { getSetting, setSetting } from './utils/settings';
+
+/**
+ * A Service class for managing the state and actions related to the hidden plugins feature
+ *
+ * It's mostly responsible for sending setting updates to the server and keeping the local state in sync.
+ */
+export class HiddenPluginsService {
+  constructor(private deckyState: DeckyState) {}
+
+  init() {
+    getSetting<string[]>('hiddenPlugins', []).then((hiddenPlugins) => {
+      this.deckyState.setHiddenPlugins(hiddenPlugins);
+    });
+  }
+
+  /**
+   * Sends the new hidden plugins list to the server and persists it locally in the decky state
+   *
+   * @param hiddenPlugins The new list of hidden plugins
+   */
+  async update(hiddenPlugins: string[]) {
+    await setSetting('hiddenPlugins', hiddenPlugins);
+    this.deckyState.setHiddenPlugins(hiddenPlugins);
+  }
+
+  /**
+   * Refreshes the state of hidden plugins in the local state
+   */
+  async invalidate() {
+    this.deckyState.setHiddenPlugins(await getSetting('hiddenPlugins', []));
+  }
+}