[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/config_page/topbar/Topbar.jsx

@@ -0,0 +1,17 @@
+import styles from "./Topbar.module.scss";
+
+import { TitleBox } from "./title_box/TitleBox";
+import { SectionTitleBox } from "./section_title_box/SectionTitleBox";
+import { CompactSwitchBox } from "./compact_switch_box/CompactSwitchBox";
+
+export const Topbar = () => {
+    return (
+        <div className={styles.container}>
+            <div className={styles.wrapper}>
+                <TitleBox />
+                <SectionTitleBox />
+                <CompactSwitchBox />
+            </div>
+        </div>
+    );
+};