remove trailing space from text

app/src/main/res/values/strings.xml

@@ -838,8 +838,7 @@ Before uploading your changes, the app checks with a <a href=\"https://www.we
     <string name="quest_buildingLevels_answer_description">In this case, simply input the values of the highest building part.</string>
     <string name="quest_buildingLevels_hint">"For buildings on a slope, the level count starts from the ground level of the lowest side.
 
-A level counts as a roof level when its windows are in the roof. Subsequently, roofs with zero roof levels are not necessarily flat, just not tall enough for an entire level.
-    "</string>
+A level counts as a roof level when its windows are in the roof. Subsequently, roofs with zero roof levels are not necessarily flat, just not tall enough for an entire level."</string>
 
     <string name="quest_buildingType_title">"What kind of building is this?"</string>
     <string name="quest_generic_item_invalid_value">Please select a more specific value.</string>