Update .gitignore and Re-add Missing launchSettings.json

[Freezor]

Description:

Summary:

This PR updates the .gitignore file to enhance the exclusion of unnecessary files and re-adds the launchSettings.json file to ensure the project functions correctly.

Details:

• Updated .gitignore:

  • Consolidated and cleaned up existing entries.
  • Added ignore patterns for modern development tools and environments.
  • Ensured consistent use of patterns and directories.

• Re-added launchSettings.json:

  • The launchSettings.json file is crucial for the proper functioning of our projects.
  • Refer to this Stack Overflow discussion for insights on why it's important not to ignore this file.

Note for the Future:

Please ensure that the launchSettings.json file is always included in the repository to avoid project setup issues.