feat(ui): FRO-34 Lobby (#21)

Started with Lobby Component

Co-authored-by: LQ63 <lkhermann@web.de>
Co-authored-by: Janis <janis-e@gmx.de>
Reviewed-on: #21
Reviewed-by: Janis <janis-e@gmx.de>
Co-authored-by: lq64 <lq@blackhole.local>
Co-committed-by: lq64 <lq@blackhole.local>

src/views/LoginView.vue

@@ -80,7 +80,7 @@ const onSubmit = () => {
   loginError.value = ''
   axios.post(`${api}/login`, {username: username.value, password: password.value}, {withCredentials: true}).then((response) => {
     uInfo.setUserInfo(response.data.user.username, response.data.user.id)
-    router.push("/mainmenu")
+    router.push("/")
   }).catch(() => {
     loginError.value = 'Invalid username or password'
   }).finally(() =>