Fix fuckup with weight service

main.go

@@ -37,7 +37,6 @@ var (
 	settingsService *SettingsService
 	foodService     *FoodService
 	weightService   *WeightService
-	db              *DB
 )
 
 func main() {
@@ -60,6 +59,7 @@ func main() {
 	log.Printf("Loaded settings as: %++v", Settings)
 
 	foodService = &FoodService{db: &db}
+	weightService = &WeightService{db: &db}
 
 	// Create an instance of the app structure
 	app := NewApp()