fixed: TS typings for Codecept and MainConfig

[danielrentz]

Motivation/Description of the PR

This PR contains fixes for TypeScript types.

• in MainConfig, the option tests can be an array of strings.
• in class Codecept, the methods bootstrap and teardown will always return a promise.
• added jsdoc with types for static Codecept.version

The npm run def script has removed a few unrelated semicolons in index.d.ts.

Applicable helpers:

• Playwright
• Puppeteer
• WebDriver
• REST
• FileHelper
• Appium
• TestCafe

Applicable plugins:

• allure
• autoDelay
• autoLogin
• customLocator
• pauseOnFail
• coverage
• retryFailedStep
• screenshotOnFail
• selenoid
• stepByStepReport
• stepTimeout
• wdio
• subtitles

Type of change

• 🔥 Breaking changes
• 🚀 New functionality
• 🐛 Bug fix
• 🧹 Chore
• 📋 Documentation changes/updates
• ♨️ Hot fix
• 🔨 Markdown files fix - not related to source code
• 💅 Polish code

Checklist:

• Tests have been added
• Documentation has been added (Run npm run docs)
• Lint checking (Run npm run lint)
• Local tests are passed (Run npm test)