feat: Define a visual identity for the application.

[matheusandre1]

hm...

Everything is very raw., Currently the application has no visual identity; it would be good to have something, such as defined colors for the layout, buttons, etc.

[matheusandre1]

cc: @mcruzdev

[matheusandre1]

There are plenty of free templates on the internet, which can be slightly modified to suit the current context.

Figma has a lot.

[mcruzdev]

Great, let's talk about it. I would like to keep the use of PrimeNG components, I know we can change the colors, but I do not know how easy is it.

Do you mind to add a proposal for colors, layout, etc?