overlay: Add notification permission for bliss launcher

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

    <!-- Default value for app switch long press action -->

    <integer name="config_longPressOnAppSwitchBehavior">0</integer>

    <!-- Colon separated list of package names that should be granted Notification Listener access -->

    <string name="config_defaultListenerAccessPackages" translatable="false">foundation.e.blisslauncher</string>

</resources>