new: display dynamic password rules checklist on registration and profile edit

Each rule (length, lowercase, uppercase, number, special character)
shows a live check/cross icon as the user types.  Also aligns
``handlePasswordChange`` server-side validation with the boilerplate
``Password`` rule (was only enforcing min 8 chars).

resources/views/Shop/auth/passwords/password_confirmation.blade.php

@@ -14,6 +14,7 @@
 
     <div class="col-md-6">
         <input id="new-password" type="password" class="form-control" name="new-password">
+        @include('Shop.auth.partials.password_rules', ['passwordInputId' => 'new-password'])
     </div>
 </div>