minor code improvements

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>org.example</groupId>
     <artifactId>Widerhall</artifactId>
-    <version>0.0.11</version>
+    <version>0.0.12</version>
     <build>
         <plugins>
             <plugin>

src/main/java/de/srsoftware/widerhall/web/Rest.java

@@ -213,10 +213,10 @@ public class Rest extends HttpServlet {
                 return Map.of(SUCCESS,t("Mailing list '{}' was {}!",listEmail,enable ? "enabled" : "disabled"));
             } catch (SQLException e) {
                 LOG.error("Failed to enable/disable mailing list: ",e);
-                return Map.of("error",t("Failed to update list '{}'",listEmail));
+                return Map.of(ERROR,t("Failed to update list '{}'",listEmail));
             }
         }
-        return Map.of("error",t("You are not allowed to edit '{}'",listEmail));
+        return Map.of(ERROR,t("You are not allowed to edit '{}'",listEmail));
     }
 
     private Map<String, String> hideList(String listEmail, User user, boolean hide) {
@@ -231,7 +231,7 @@ public class Rest extends HttpServlet {
             }
 
         }
-        return Map.of("error",t("You are not allowed to edit '{}'",listEmail));
+        return Map.of(ERROR,t("You are not allowed to edit '{}'",listEmail));
     }
 
     private Map testList(String listEmail, User user) {