[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.

vite.config.js

@@ -57,6 +57,8 @@ export default defineConfig(async () => {
             alias: {
                 "@root": path.resolve(__dirname),
 
+                "@useI18n": path.resolve(__dirname, "locales/useI18n.js"),
+
                 "@useReceiveRoutes": path.resolve(__dirname, "src-ui/logics/useReceiveRoutes.js"),
                 "@useStdoutToPython": path.resolve(__dirname, "src-ui/logics/useStdoutToPython.js"),