fix(SplitPDF): create immutable list for dynamic additions (#877)

src/main/java/stirling/software/SPDF/model/ApplicationProperties.java

@@ -277,7 +277,6 @@ public class ApplicationProperties {
                     + enableAlphaFunctionality
                     + "]";
         }
-
     }
 
     public static class Ui {

src/main/java/stirling/software/SPDF/model/Role.java

@@ -20,7 +20,11 @@ public enum Role {
     // 0 API calls per day and 20 web calls
     WEB_ONLY_USER("ROLE_WEB_ONLY_USER", 0, 20, "adminUserSettings.webOnlyUser"),
 
-    INTERNAL_API_USER("STIRLING-PDF-BACKEND-API-USER", Integer.MAX_VALUE, Integer.MAX_VALUE, "adminUserSettings.internalApiUser"),
+    INTERNAL_API_USER(
+            "STIRLING-PDF-BACKEND-API-USER",
+            Integer.MAX_VALUE,
+            Integer.MAX_VALUE,
+            "adminUserSettings.internalApiUser"),
 
     DEMO_USER("ROLE_DEMO_USER", 100, 100, "adminUserSettings.demoUser");