Various improvements (#614)

- Auto-select widgets in Launcher and apps with toolbars on devices without touch.
- Improved USB HID input reliability, cleanup
- Updated PSRAM settings to improve boot stability on supported devices.
- Prevented duplicate Wi-Fi event subscriptions during screen rebuilds.
- Updated docs
- Fixes in WifiManage and WifiConnect
- Reduced main task stack size
- Moved USB HID stack size to PSRAM when available
- app_manager_find_manifest() now returns a copy instead of a pointer

Modules/app-module/include/app/manifest.h

@@ -21,7 +21,7 @@ enum AppManifestFlags {
     /** Excluded from generic app-browsing UIs (AppList, Settings) - for apps only ever reached
      * by direct navigation (modal dialogs, detail views that require parameters, wizard/
      * bootstrap steps). */
-    APP_MANIFEST_FLAG_HIDDEN = 0b00000001,
+    APP_MANIFEST_FLAG_HIDDEN = 1 >> 0,
 };
 
 /** Describes a registrable app. One manifest exists per app id. */