feat: Implement basic general folder support (#2051)

- Related: #1748

src/ha/has-hass-connection-changed.ts

@@ -0,0 +1,14 @@
+import { HomeAssistant } from './types';
+
+/**
+ * Determine if HA connection state has changed.
+ * @param newHass The new HA object.
+ * @param oldHass The old HA object.
+ * @returns `true` if the connection state has changed.
+ */
+export const hasHAConnectionStateChanged = (
+  oldHass?: HomeAssistant | null,
+  newHass?: HomeAssistant | null,
+): boolean => {
+  return oldHass?.connected !== newHass?.connected;
+};