rename signin / signup to login / register

frontend/middleware/authenticated.ts

@@ -1,13 +1,13 @@
 export default defineNuxtRouteMiddleware((to, _from) => {
     if (
         useAuthSession().value != null ||
-        to.name === 'signin' ||
-        to.name === 'signup'
+        to.name === 'login' ||
+        to.name === 'register'
     ) {
         return;
     }
 
     return navigateTo({
-        path: '/signin',
+        path: 'login',
     });
 });