Fix repetition of "browser"

Changed some "browsers" with "navegadores". This should make the post more enjoyable to read.
Update "vai poder" for "poderá"
Add new button style to logo. Simplify.

New colors are available. They will be used in the future for links and buttons.
Update link styles

New link styles makes than highlight from text in the same way it do not introduce another color to the website.
Update colors to increase hierarchy
Fix problem with function being used in color settings
Add <mark> style
Update about text with highlight for "experiências digitais"