Remove id autogeneration from db models

Remove automatic uuid v4 ID generation from the models and replace it
with `shared.NewId()`, which generates an Id depending on the config
setting

web/debug/users.go

@@ -129,6 +129,7 @@ func createLocalUser(w http.ResponseWriter, r *http.Request) {
 
 	u := dbgen.User
 	query := u.Select(
+		u.ID,
 		u.Username,
 		u.DisplayName,
 		u.Description,
@@ -149,6 +150,7 @@ func createLocalUser(w http.ResponseWriter, r *http.Request) {
 		query = query.Select(u.Location)
 	}
 	user := models.User{
+		ID:                   shared.NewId(),
 		Username:             data.Username,
 		DisplayName:          data.Displayname,
 		Description:          data.Description,