[TOOL-3328] Dashboard: Show error message in toast on Email submission fail in onboaridng flow (#6186)

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## PR-Codex overview
This PR enhances error handling in the `AccountForm` component by improving the way errors are processed and displayed to the user.

### Detailed summary
- Replaced the `onError` parameter's type from `Error` to a more generic `error`.
- Added console logging for errors.
- Implemented specific error handling for duplicate email and invalid email address cases.
- Integrated `toast` notifications for user-friendly error messages.

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Author: MananTank

apps/dashboard/src/app/login/onboarding/AccountForm.tsx

@@ -8,6 +8,7 @@ import { zodResolver } from "@hookform/resolvers/zod";
 import { useTrack } from "hooks/analytics/useTrack";
 import { useState } from "react";
 import { useForm } from "react-hook-form";
+import { toast } from "sonner";
 import {
   type AccountValidationSchema,
   accountValidationSchema,
@@ -81,15 +82,21 @@ export const AccountForm: React.FC<AccountFormProps> = ({
           data,
         });
       },
-      onError: (err) => {
-        const error = err as Error;
+      onError: (error) => {
+        console.error(error);
 
         if (
           onDuplicateError &&
           error?.message.match(/email address already exists/)
         ) {
           onDuplicateError(values.email);
+          return;
+        } else if (error.message.includes("INVALID_EMAIL_ADDRESS")) {
+          toast.error("Invalid Email Address");
+        } else {
+          toast.error(error.message || "Failed to update account");
         }
+
         trackEvent({
           category: "account",
           action: "update",