Fix the validation issue when the APK file and screenshot names contain spaces

components/application-mgt/io.entgra.device.mgt.core.application.mgt.core/src/main/java/io/entgra/device/mgt/core/application/mgt/core/util/APIUtil.java

@@ -48,6 +48,8 @@ import org.apache.commons.validator.routines.UrlValidator;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
 
 import javax.ws.rs.core.Response;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -482,7 +484,7 @@ public class APIUtil {
     }
 
     private static String encodeURI(String value) {
-        return value.replace(" ", "%20");
+        return URLEncoder.encode(value, StandardCharsets.UTF_8);
     }
 
     private static final String FILE_NAME_PARAM = "?fileName=";