[Update] Starting Up: Add loading animation when the software preparing, until backend is ready.

src-ui/logics/common/index.js

@@ -1,3 +1,4 @@
+export { useIsBackendReady } from "./useIsBackendReady";
 export { useWindow } from "./useWindow";
 export { useIsOpenedConfigPage } from "./useIsOpenedConfigPage";
 export { useIsSoftwareUpdateAvailable } from "./useIsSoftwareUpdateAvailable";

src-ui/logics/common/useIsBackendReady.js

@@ -0,0 +1,15 @@
+import { useStore_IsBackendReady } from "@store";
+
+export const useIsBackendReady = () => {
+    const { currentIsBackendReady, updateIsBackendReady } = useStore_IsBackendReady();
+
+    const setIsBackendReady = (is_ready) => {
+        updateIsBackendReady(is_ready);
+    };
+
+    return {
+        currentIsBackendReady,
+        setIsBackendReady,
+        updateIsBackendReady,
+    };
+};