Fix TS issues in JS samples

[ceciliaavila]

#minor

Description

This pull request enhances the JavaScript sample bots by incorporating the @ts-check flag and resolving existing TypeScript issues.

Proposed Changes

• Added the ts-check flag in all .js files and fixed the TS issues, which include:
  • Adding default values to variables to avoid undefined results.
  • Importing types used in documentation with the @import comment tag.
• Replaced inexistent URLs in 08.suggested-actions/bots/suggestedActionsBot.js.
• Added the @ts-ignore tag to bypass issues that would require major typing fixes.
• Added missing properties in output result in 44.prompt-for-user-input/bots/customPromptBot.js
• Added missing dotenv declaration in 83.named-pipe-sample/named-pipe-bot/utils/renewDirectLineToken.js.

Testing

All samples were tested with the latest version of botbuilder (4.23.2). These images show some of the samples working: