How to add favicon with symfony?

@jasen 

To add a favicon to a Symfony project, you need to follow these steps:

1. Create or find an image that you want to use as your favicon. The image should be in .ico format for best compatibility.
2. Place the favicon.ico file in the public directory of your Symfony project. You can also place it in the web directory if you are using an older version of Symfony.
3. In your base template file (e.g., base.html.twig), add a link tag to reference the favicon.ico file. You can add this within the section of your HTML code. Here's an example of how to do this:
4. Clear the cache of your Symfony project to apply the changes by running the following command in the terminal: php bin/console cache:clear
5. Refresh your browser to see the favicon displayed in the tab of your website.

That's it! You have successfully added a favicon to your Symfony project.