Theme toggle button / fix card height

[Kyozao]

Changes made:

• Added theme toggle button (light/dark)
• Fixed inconsistent stats card height / hover animation on homepage stats cards

Based on:

Built on top of PR #9

[wellwelwel]

Thanks, @Kyozao! As it's a visual change, it would be great if you could share the difference 🙋🏻‍♂️

Note

Feel free to talk in Portuguese.

Important

Aguardando resolução do PR #9 para prosseguir.

[Kyozao]

Diferença visual:

Antes:

Depois:

• Nivela a altura dos cards, tira o delay do hover e adiciona o botão de alternância de tema.