In this project, I want you to put what you have learned so far into practice.

I want you to try and write the code for the following:

• A function that checks if the user is using a mobile device. If so, display a sidebar with the name 'mobile sidebar' else display the sidebar named 'desktop sidebar'.
• A function that checks if the user is on the front page. If so, display the tag cloud else display the list of categories.