Add account deletion confirmation page, privacy settings template, and profile view template

- Created a new HTML template for account deletion confirmation with user-friendly messaging and a return link.
- Developed a privacy settings page allowing users to control visibility of their personal information with appropriate messaging for success and error states.
- Implemented a profile view template displaying user information, statistics, teams, and achievements based on user permissions.
- Added responsive design elements and improved user interface with Tailwind CSS classes for better aesthetics and usability.

app/templates/dashboard/index.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 {% block content %}
-<div class="space-y-6">
+<div class="max-w-4xl mx-auto space-y-6">
   <!-- User Welcome -->
   <div class="bg-white rounded-lg shadow-md p-6">
     <h1 class="text-2xl md:text-3xl font-garamond text-irish-green mb-2">Welcome, {{ user.username }}!</h1>