chore: review and update guide/best-practices

[nazarepiedady]

This issue is to track the review process of all files inside the src/guide/scaling-up folder.

The objective of this review is to ensure that the grammar, language, and writing style of Portuguese are equally accessible for both Non-Brazillian and Brazillian. The plan is to use the orthographic agreement used in Brazil for most of the words and a few specific words will be used in the form they are used out of Brazil, we list some of the word translation examples that are obligatory:

• file must be always translated to the Portuguese word ficheiro, but the word could be documento.
• section must be always translated to the Portuguese word seção.
• typing, depending on the context must be translated to tipos, tipificando, tipificação, or tipagem.
• the verb to type, when it refers to the act of assigning a type to a variable or object, must be translated to tipificar, when not, must be translated to digitar.
• store must be translated to memória when the word is used in the state management context.

It is not possible to list all recommendations so the rest will be suggested in the pull requests.

Files:

• docs(pt): review and update guide/best-practices/accessibility.md #138
• docs(pt): review and update guide/best-practices/performance.md #139
• docs(pt): review and update guide/best-practices/production-deployment.md #140
• docs(pt): review and update guide/best-practices/security.md #141

We must make efforts to avoid foreignisation in the process of translation.