add lucide-react dependency and update form handling in MainForm

- Added lucide-react to package dependencies
- Refactored MainForm to improve form handling and user selection
- Removed SuccessPage component and related logic
- Updated localization files to include new keys for invoice details
- Created interfaces for form data and messages

frontend/src/utils/sender.ts

@@ -1,23 +1,14 @@
 import { API_BASE } from "../config/api.config";
+import type { FormData } from "../config/interfaces.config";
 
-interface FormData {
-  firstName: string;
-  lastName: string;
-  email: string;
-  phoneNumber: string;
-  tickets: number;
-  companyName: string;
-  cmpFirstName: string;
-  cpmLastName: string;
-  cpmEmail: string;
-  cpmPhoneNumber: string;
-  street: string;
-  postalCode: string;
-  paymentMethod: string;
-}
+export const submitFormData = async (
+  data: FormData,
+  username: string | null,
+) => {
+  if (username == null) {
+    return { success: false, errorCode: "x001" };
+  }
 
-export const submitFormData = async (data: FormData, username: string) => {
-  console.log(data);
   try {
     const response = await fetch(
       `${API_BASE}/default/new-entry?username=${username}`,