fix #241 stop button lock (#362)

* fix #241 stop button lock

Adds a delay and animation to the stop and pause buttons

- short vibration when starting to push the buttons
- long vibration when action was executed
- Toast to show "Hold to stop/pause recording"

src/main/AndroidManifest.xml

@@ -43,6 +43,7 @@ limitations under the License.
 
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />