Shorten the strings in time zone picker menu

    <string name="zone_time_type_dst">Daylight savings time</string>

    <!-- Describes the time type "standard time" (used in zone_change_to_from_dst, when no zone specific name is available) -->

    <string name="zone_time_type_standard">Standard time</string>

    <!-- The menu item to switch to selecting a time zone by region (default) -->

    <string name="zone_menu_by_region">Show time zones by region</string>

    <!-- The menu item to switch to selecting a time zone with a fixed offset (such as UTC or GMT+0200) -->

    <string name="zone_menu_by_offset">Show time zones by UTC offset</string>

    <!-- The menu item to switch to selecting a time zone by region (default) [CHAR LIMIT=30] -->

    <string name="zone_menu_by_region">Select by region</string>

    <!-- The menu item to switch to selecting a time zone with a fixed offset (such as UTC or GMT+0200) [CHAR LIMIT=30] -->

    <string name="zone_menu_by_offset">Select by UTC offset</string>

    <!-- Title string shown above DatePicker, letting a user select system date

         [CHAR LIMIT=20] -->