Update unsupported split app error text

    <!-- Label for toast with instructions for split screen selection mode. [CHAR_LIMIT=50] -->

    <string name="toast_split_select_app">Tap another app to use splitscreen</string>

    <!-- Label for toast when app selected for split isn't supported. [CHAR_LIMIT=50] -->

    <string name="toast_split_app_unsupported">App does not support split-screen.</string>

    <string name="toast_split_app_unsupported">Choose another app to use split screen</string>

    <!-- Message shown when an action is blocked by a policy enforced by the app or the organization managing the device. [CHAR_LIMIT=NONE] -->

    <string name="blocked_by_policy">This action isn\'t allowed by the app or your organization</string>