[Refactor] (Huge Refactoring 2)

Consolidated all logic into category-specific files.
Renamed useTranslation from react-i18next to useI18n to avoid a name conflict with our own function.

src-ui/app/config_page/topbar/compact_switch_box/CompactSwitchBox.jsx

@@ -1,9 +1,9 @@
-import { useTranslation } from "react-i18next";
+import { useI18n } from "@useI18n";
 
 import styles from "./CompactSwitchBox.module.scss";
 
 export const CompactSwitchBox = () => {
-    const { t } = useTranslation();
+    const { t } = useI18n();
     return (
         <div className={styles.container}>
             <p>{t("config_page.compact_mode")}</p>