feat: Refactor App and ChannelsTable components for improved i18n support

- Removed redundant user and status loading logic from the App component, centralizing it in the PageLayout component for better maintainability.
- Enhanced the ChannelsTable component by integrating translation functions for various UI elements, ensuring consistent localization of titles and modal messages.
- Updated the English locale file with new translation keys for sub-channel modifications, improving the overall localization coverage.
- Streamlined the code structure in multiple components to enhance readability and performance.

web/src/pages/Home/index.js

@@ -54,7 +54,8 @@ const Home = () => {
   useEffect(() => {
     displayNotice().then();
     displayHomePageContent().then();
-  }, []);
+  });
+
   return (
     <>
       {homePageContentLoaded && homePageContent === '' ? (