OSF: Used model.NewPointer everywhere (#27838)

```release-note
NONE
```

server/channels/api4/user.go

@@ -62,7 +62,7 @@ func (api *API) InitUser() {
 	api.BaseRoutes.User.Handle("/mfa/generate", api.APISessionRequiredMfa(generateMfaSecret)).Methods(http.MethodPost)
 
 	api.BaseRoutes.Users.Handle("/login", api.APIHandler(login)).Methods(http.MethodPost)
-	api.BaseRoutes.Users.Handle("/login/desktop_token", api.RateLimitedHandler(api.APIHandler(loginWithDesktopToken), model.RateLimitSettings{PerSec: model.NewInt(2), MaxBurst: model.NewInt(1)})).Methods(http.MethodPost)
+	api.BaseRoutes.Users.Handle("/login/desktop_token", api.RateLimitedHandler(api.APIHandler(loginWithDesktopToken), model.RateLimitSettings{PerSec: model.NewPointer(2), MaxBurst: model.NewPointer(1)})).Methods(http.MethodPost)
 	api.BaseRoutes.Users.Handle("/login/switch", api.APIHandler(switchAccountType)).Methods(http.MethodPost)
 	api.BaseRoutes.Users.Handle("/login/cws", api.APIHandlerTrustRequester(loginCWS)).Methods(http.MethodPost)
 	api.BaseRoutes.Users.Handle("/logout", api.APIHandler(logout)).Methods(http.MethodPost)