Update translation in ar line 292

Author: huitk

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

@@ -289,7 +289,7 @@
     <string name="green">أخضر</string>
     <string name="blue">أزرق</string>
     <string name="clear">واضح</string>
-    <string name="gesture">අංග සංකේතය</string>
+    <string name="gesture">إيماءة</string>
     <string name="eCO2">eCO2</string>
     <string name="eTVOC">TVOC</string>
     <string name="plot_lux">Plot - Light Lux</string>