Shorten volume key navigation strings

    <string name="animations_title">Animation</string>

    <string name="animations_summary">Use gaudy visual effects</string>

    <string name="volume_navigation_title">Volume key navigation in message view</string>

    <string name="volume_navigation_title_short">Volume key navigation</string>

    <string name="volume_navigation_summary">Navigate between messages using the volume keys in message view</string>

    <string name="show_unified_inbox_title">Show Unified Inbox</string>

    <string name="show_starred_count_title">Show starred count</string>

        <CheckBoxPreference

            android:key="volume_navigation"

            android:title="@string/volume_navigation_title"

            android:title="@string/volume_navigation_title_short"

            android:summary="@string/volume_navigation_summary"

            />

        <ListPreference