Add explainitory comment

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/main/index.ts

@@ -128,6 +128,12 @@ app.on("ready", async () => {
 
   PrometheusProviderRegistry.createInstance();
   initializers.initPrometheusProviderRegistry();
+
+  /**
+   * The following sync MUST be done before HotbarStore creation, because that
+   * store has migrations that will remove items that previous migrations add
+   * if this is not presant
+   */
   syncGeneralEntities();
 
   logger.info("💾 Loading stores");