docs(pt): translate handbook-v2/Modules

[guuszz]

Summary

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

This continues the handbook-v2 PT-BR effort (#247–#254). Modules covers how JS modules are defined, ES Module syntax (default/named/namespace imports, import type, inline type imports), CommonJS syntax and interop, module resolution and module output options.

Translation choices

• Followed the established pt/ frontmatter convention: translated title and oneline, adapted permalink to /pt/docs/handbook/2/modules.html.
• Preserved every code sample verbatim — all 27 // @filename: directives (the multi-file twoslash examples), every // ---cut--- (11), all 7 // ^? markers, the 4 /// <reference types="node" /> triple-slash directives, and the compiler-option directives (// @module: commonjs/es2020/umd, // @showEmit, // @noErrors, // @errors: 1361).
• Preserved the <blockquote class='bg-reading'> box: translated the "Additional Reading" label to "Leitura Adicional" and kept the links unchanged.
• Kept the ###### (h6) sub-headings (import type, inline type imports).
• Kept technical terms with a PT gloss where useful (e.g. carregador de módulos (module loader)).

Source

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

Testing

Read side-by-side with the EN source; verified code fences (40), @filename (27), ---cut--- (11), ^? (7), triple-slash references (4) and @module/@showEmit directives (9) all match between EN and PT. Cross-checked terminology against the already-merged pt/ pages and my sibling PRs (#247–#254).

[jakebailey]

We are currently not accepting new localizations. microsoft/TypeScript-Website#2804

I do not recommend sending any more PRs. They will not be reviewed.