Add password change routes to backend and frontend; update routing and UI components for password management

frontend/src/router/index.js

@@ -17,6 +17,7 @@ import Workdays from '../views/Workdays.vue'
 import Calendar from '../views/Calendar.vue'
 import Holidays from '../views/Holidays.vue'
 import Profile from '../views/Profile.vue'
+import PasswordChange from '../views/PasswordChange.vue'
 
 const router = createRouter({
   history: createWebHistory(import.meta.env.BASE_URL),
@@ -105,6 +106,12 @@ const router = createRouter({
       component: Profile,
       meta: { requiresAuth: true }
     },
+    {
+      path: '/settings/password',
+      name: 'settings-password',
+      component: PasswordChange,
+      meta: { requiresAuth: true }
+    },
     {
       path: '/entries',
       name: 'entries',