fix grammar in the grant permissions UI

    <!-- Title for the unselected state of a CompoundButton. -->

    <string name="accessibility_compound_button_unselected">not checked</string>

    <string name="grant_credentials_permission_message_header">The following one or more applications are requesting permission to access your account, now and in the future.</string>

    <string name="grant_credentials_permission_message_header">The following one or more applications request permission to access your account, now and in the future.</string>

    <string name="grant_credentials_permission_message_footer">Do you want to allow this request?</string>

    <string name="grant_permissions_header_text">Access Request</string>

    <string name="allow">Allow</string>