refactor: extract test user data and improve "New offers" test flow

- Extract test user data (seed phrases, DIDs, usernames) from importUser into separate getTestUserData function
- Refactor importUser to use getTestUserData internally, maintaining backward compatibility
- Update "New offers for another user" test to use new getTestUserData function
- Replace hardcoded seed phrase with programmatic retrieval using getTestUserData('00')
- Add proper TypeScript type annotations to array functions in testUtils
- Improve test maintainability by centralizing test user data management

This allows tests to access user data without executing import flow, providing more flexibility for test scenarios.

src/views/ContactsView.vue

@@ -828,15 +828,19 @@ export default class ContactsView extends Vue {
    * Handle registration prompt for new contacts
    */
   private async handleRegistrationPrompt(newContact: Contact): Promise<void> {
+    console.log("[ContactsView] handleRegistrationPrompt", this.isRegistered, this.hideRegisterPromptOnNewContact, newContact.registered);
     if (
-      !this.isRegistered ||
-      this.hideRegisterPromptOnNewContact ||
-      newContact.registered
+      this.isRegistered === false || // the current Identity is not registered OR
+      this.hideRegisterPromptOnNewContact === true || // the user has hidden the registrationprompt OR
+      newContact.registered === true // the new contact is already registered
     ) {
+      // if any of the above are true, we do not want to show the registration prompt
+      console.log("[ContactsView] handleRegistrationPrompt we do not want to show the registration prompt");
       return;
     }
 
     setTimeout(() => {
+      console.log("[ContactsView] handleRegistrationPrompt setTimeout");
       this.$notify(
         {
           group: "modal",
@@ -844,18 +848,22 @@ export default class ContactsView extends Vue {
           title: "Register",
           text: "Do you want to register them?",
           onCancel: async (stopAsking?: boolean) => {
+            console.log("[ContactsView] handleRegistrationPrompt onCancel", stopAsking);
             await this.handleRegistrationPromptResponse(stopAsking);
           },
           onNo: async (stopAsking?: boolean) => {
+            console.log("[ContactsView] handleRegistrationPrompt onNo", stopAsking);
             await this.handleRegistrationPromptResponse(stopAsking);
           },
           onYes: async () => {
+            console.log("[ContactsView] handleRegistrationPrompt onYes");
             await this.register(newContact);
           },
           promptToStopAsking: true,
         },
         -1,
       );
+      console.log("[ContactsView] handleRegistrationPrompt setTimeout done");
     }, 1000);
   }