Add cookie utils to set and get the favoriteTeam - closes #103

[miguelaugl]

Proposal to #103

As recommended in Remix Docs Cookies Section, I created the cookie utils inside app/cookies.ts.

Some questions

• Should we use a general solution like userPrefs or go for favoriteTeam only?
• Should this cookie expires? If so, how long is suitable?

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[miguelaugl]

I made the change suggested, thank you!

[helderberto]

Congrats @miguelaugl for your first contribution! 🏀