Add googleapis preconnect to fonts import

[pauloreis7]

Hello.

Would be good add at 'public/index.html' on top of the fonts import link, the line:
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>

This way the fonts will load faster.

The google uses the preconnect above the font import link as a way to speed up the connection of the default google font to the application.

It is a simple change to make that maintains the current structure of the project and improves considerably the performance of loading and displaying the fonts on the screen :D