Fix info.xsd to sync with the appstore one

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

resources/app-info.xsd

@@ -344,6 +344,7 @@
             <xs:enumeration value="social"/>
             <xs:enumeration value="tools"/>
             <xs:enumeration value="games"/>
+            <xs:enumeration value="search"/>
         </xs:restriction>
     </xs:simpleType>