docs(pt): translate handbook-v2/Everyday Types

[guuszz]

Summary

Adds the Brazilian Portuguese translation of Everyday Types from the TypeScript v2 Handbook, into docs/documentation/pt/handbook-v2/.

This continues the handbook-v2 PT-BR effort (#247 Understanding Errors, #248 The Handbook, #249 Basics). Everyday Types is the canonical page #3 in the reading order and one of the most consulted pages in the handbook (primitives, arrays, unions, type aliases, interfaces, literals, null/undefined).

Translation choices

• Followed the established pt/ frontmatter convention: translated title and oneline, adapted permalink to /pt/docs/handbook/2/everyday-types.html.
• Preserved every code sample verbatim — all twoslash directives (// @errors, // @target), every // ---cut--- (6 of them, used to hide setup code), and the positional markers (// ^?, the ^^^^ annotation pointers) byte-for-byte. Verified the 11 @errors codes match the EN source exactly.
• Preserved the HTML comparison table (Interface vs Type <div class='table-container'>): translated the prose (<p> descriptions, the // Erro: Identificador duplicado comment) while keeping all code inside <pre> and the long /play?#code/... permalinks unchanged.
• Translated only the explanatory comments inside code blocks; kept identifiers, strings and the existing "Olá Mundo" sample.
• Kept technical terms with a PT gloss on first use where useful (e.g. união (union), estreitamento (narrowing)).

Source

microsoft/TypeScript-Website @ packages/documentation/copy/en/handbook-v2/Everyday Types.md

Testing

Read side-by-side with the EN source; verified code fences (72), ---cut--- count (6) and all @errors codes are identical between EN and PT. Cross-checked terminology against the already-merged pt/ pages and my sibling PRs in this series.