Translate: Promises, async/await section (8 articles)

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Part of #1

Translated

Articles

• 1-js/11-async/01-callbacks/article.md (10/10)
• 1-js/11-async/02-promise-basics/article.md (10/10)
• 1-js/11-async/03-promise-chaining/article.md (10/10)
• 1-js/11-async/04-promise-error-handling/article.md (10/10)
• 1-js/11-async/05-promise-api/article.md (10/10)
• 1-js/11-async/06-promisify/article.md (10/10)
• 1-js/11-async/07-microtask-queue/article.md (10/10)
• 1-js/11-async/08-async-await/article.md (10/10)

Tasks & Solutions

• 02-promise-basics: 3 tasks + 3 solutions
• 03-promise-chaining: 1 task + 1 solution
• 04-promise-error-handling: 1 task + 1 solution
• 08-async-await: 4 tasks + 4 solutions

Supporting files

• 03-promise-chaining/head.html, getMessage.js
• 02-promise-basics/03-animate-circle-promise/solution.view/index.html

Total: 28 files translated