[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/sidebar_section/SidebarSection.jsx

@@ -0,0 +1,46 @@
+import styles from "./SidebarSection.module.scss";
+
+export const SidebarSection = () => {
+    return (
+        <div className={styles.container}>
+            <div className={styles.tabs_wrapper}>
+                <Tab tab_id="appearance" />
+                <Tab tab_id="translation" />
+                <Tab tab_id="transcription" />
+                <Tab tab_id="vr" />
+                <Tab tab_id="others" />
+                <Tab tab_id="advanced_settings" />
+            </div>
+            <div className={styles.separated_tabs_wrapper}>
+                <Tab tab_id="about_vrct" />
+            </div>
+        </div>
+    );
+};
+
+
+import clsx from "clsx";
+import { useTranslation } from "react-i18next";
+import { useSelectedConfigTabId } from "@store";
+
+const Tab = (props) => {
+    const { t } = useTranslation();
+    const { updateSelectedConfigTabId, currentSelectedConfigTabId } = useSelectedConfigTabId();
+    const onclickFunction = () => {
+        updateSelectedConfigTabId(props.tab_id);
+    };
+
+    const tab_container_class_names = clsx(styles["tab_container"], {
+        [styles["is_selected"]]: (currentSelectedConfigTabId === props.tab_id) ? true : false
+    });
+    const switch_indicator_class_names = clsx(styles["switch_indicator"], {
+        [styles["is_selected"]]: (currentSelectedConfigTabId === props.tab_id) ? true : false
+    });
+
+    return (
+        <div className={tab_container_class_names} onClick={onclickFunction}>
+            <p className={styles.tab_text}>{t(`config_page.side_menu_labels.${props.tab_id}`)}</p>
+            <div className={switch_indicator_class_names}></div>
+        </div>
+    );
+};

src-ui/app/config_page/sidebar_section/SidebarSection.module.scss

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+.container {
+    width: var(--config_page_sidebar_width);
+    flex-shrink: 0;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    padding: 5.8rem 0rem 5.8rem 2.8rem;
+    max-height: 60rem;
+}
+
+.tabs_wrapper {
+    width: 100%;
+    display: flex;
+    flex-direction: column;
+    gap: 0.1rem;
+    flex: 1;
+}
+
+.tab_container {
+    position: relative;
+    width: 100%;
+    display: flex;
+    justify-content: left;
+    align-items: center;
+    color: var(--dark_basic_text_color);
+    padding: 0.8rem 0 0.8rem 1.8rem;
+    cursor: pointer;
+    &:hover {
+        background-color: var(--dark_800_color);
+    }
+    &:active {
+        background-color: var(--dark_900_color);
+    }
+    &.is_selected {
+        background-color: inherit;
+        color: var(--primary_200_color);
+        cursor: default;
+        pointer-events: none;
+    }
+}
+
+.switch_indicator {
+    display: none;
+    &.is_selected {
+        display: block;
+        position: absolute;
+        top: 50%;
+        left: 0rem;
+        transform: translate(-50%, -50%);
+        width: 0.2rem;
+        height: 2.6rem;
+        border-radius: 0.1rem;
+        background-color: var(--primary_300_color);
+    }
+}
+
+.tab_text {
+    font-size: 1.8rem;
+}
+
+.separated_tabs_wrapper {
+    // padding-bottom: 1.2rem;
+}