light_rail was missing from transportation types chunk

Fixes MarcusWolschon/osmeditor4android#2697

master_preset.xml

@@ -2559,6 +2559,7 @@
             <check key="trolleybus" text="Trolleybus" disable_off="true"/>
             <check key="share_taxi" text="Share taxi" disable_off="true"/>
             <check key="subway" text="Subway" disable_off="true"/>
+            <check key="light_rail" text="Light rail" disable_off="true"/>
             <check key="monorail" text="Monorail" disable_off="true"/>
             <check key="funicular" text="Funicular" disable_off="true"/>
             <check key="aerialway" text="Aerialway" disable_off="true"/>