feat(webhid) - add webhid feature flag (#13071)

config.js

     // Require users to always specify a display name.
     // requireDisplayName: true,
 
+    // Enables webhid functionality for Audio.
+    // enableWebHIDFeature: false,
+
     // DEPRECATED! Use 'welcomePage.disabled' instead.
     // Whether to use a welcome page or not. In case it's false a random room
     // will be joined when no room is specified.

react/features/base/config/configType.ts

     enableSaveLogs?: boolean;
     enableTcc?: boolean;
     enableUnifiedOnChrome?: boolean;
+    enableWebHIDFeature?: boolean;
     enableWelcomePage?: boolean;
     etherpad_base?: string;
     faceLandmarks?: {

react/features/base/config/functions.web.ts

     return buttons;
 }
 
+/**
+ * Returns the configuration value of web-hid feature.
+ *
+ * @param {Object} state - The state of the app.
+ * @returns {boolean} True if web-hid feature should be enabled, otherwise false.
+ */
+export function getWebHIDFeatureConfig(state: IReduxState): boolean {
+    return state['features/base/config'].enableWebHIDFeature || false;
+}
+
 /**
  * Checks if the specified button is enabled.
  *

react/features/device-selection/functions.web.ts

 import { IStore } from '../app/types';
 import { IStateful } from '../base/app/types';
+import { getWebHIDFeatureConfig } from '../base/config/functions.web';
 import {
     addPendingDeviceRequest,
     getAvailableDevices,
     const inputDeviceChangeSupported = JitsiMeetJS.mediaDevices.isDeviceChangeAvailable('input');
     const speakerChangeSupported = JitsiMeetJS.mediaDevices.isDeviceChangeAvailable('output');
     const userSelectedMic = getUserSelectedMicDeviceId(state);
-    const deviceHidSupported = isDeviceHidSupported();
+    const deviceHidSupported = isDeviceHidSupported() && getWebHIDFeatureConfig(state);
     const noiseSuppressionEnabled = isNoiseSuppressionEnabled(state);
     const hideNoiseSuppression = isPrejoinPageVisible(state) || isDisplayedOnWelcomePage;