fix: Correct profile settings route from /profile-settings to /profile/settings

Issue: Edit Profile button returned 404 error

Root Cause:
- App.tsx route: /profile-settings (with dash)
- Dashboard navigate: /profile/settings (with slash)
- Route mismatch caused 404

Changes:
- Updated App.tsx route: /profile-settings → /profile/settings
- Updated AppLayout.tsx Settings button navigation

All profile settings links now use consistent /profile/settings route

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/App.tsx

@@ -39,7 +39,7 @@ function App() {
                         <Dashboard />
                       </ProtectedRoute>
                     } />
-                    <Route path="/profile-settings" element={
+                    <Route path="/profile/settings" element={
                       <ProtectedRoute>
                         <ProfileSettings />
                       </ProtectedRoute>