[Update] Combine in one window. Rename Main/Config Window to Main/Config Page accordingly.

For now, I put Config Page to below the main page temporary. Open Config Button does not work.

src-ui/app/App.jsx

@@ -0,0 +1,35 @@
+import { getCurrent } from "@tauri-apps/api/window";
+import { useEffect, useRef } from "react";
+import { useStartPython } from "@logics/useStartPython";
+import { useConfig } from "@logics/useConfig";
+
+import { MainPage } from "./main_page/MainPage";
+import { ConfigPage } from "./config_page/ConfigPage";
+
+
+export const App = () => {
+    const { asyncStartPython } = useStartPython();
+    const hasRunRef = useRef(false);
+    const main_page = getCurrent();
+
+    const { getSoftwareVersion } = useConfig();
+
+    useEffect(() => {
+        main_page.setDecorations(true);
+        if (!hasRunRef.current) {
+            asyncStartPython().then((result) => {
+                getSoftwareVersion();
+            }).catch((err) => {
+
+            });
+        }
+        return () => hasRunRef.current = true;
+    }, []);
+
+    return (
+        <>
+            <MainPage/>
+            <ConfigPage/>
+        </>
+    );
+};