chore: fix nodejs sample app

[saikumarrs]

I've added Node.js sample apps for JavaScript and TypeScript languages.
See the README.md files in the examples/<app> directory for more details.

Note that the sample apps are now added in the root examples directory instead of tests/e2e.

I've also added steps to run the sample app against regenerated client libraries from both the production version of RudderTyper and the local working copy in the repository.
This will help us during development where we have to validate the changes quickly.

Apart from that the following major changes were made:

• I replaced yarn with npm throughout the repo (we have to update the docs if needed).
• Fixed GitHub workflows and added CODEOWNERS file.
• Upgrade Node to the latest v20.x.x version.
• Added husky dependency for pre-commit hooks.
• Removed redundant e2e test setup as it was not applicable anymore.
• Updated README.md in the root to the latest.
• Upgraded all the dependencies to their latest versions and used absolute versions.

These changes will now enable us to run RudderTyper tool in any terminal client.

[codecov]

Codecov Report

Attention: Patch coverage is 1.60428% with 184 lines in your changes missing coverage. Please review.

Project coverage is 8.50%. Comparing base (b67f2f2) to head (0253036).

Files	Patch %	Lines
src/cli/commands/init.tsx	0.00%	37 Missing ⚠️
src/cli/commands/build.tsx	0.00%	23 Missing ⚠️
src/cli/api/api.ts	0.00%	13 Missing ⚠️
src/generators/gen.ts	0.00%	13 Missing ⚠️
src/cli/index.tsx	0.00%	11 Missing ⚠️
src/generators/javascript/javascript.ts	0.00%	11 Missing ⚠️
src/generators/swift/swift.ts	0.00%	10 Missing ⚠️
src/generators/objc/objc.ts	0.00%	9 Missing ⚠️
src/cli/commands/token.tsx	0.00%	8 Missing ⚠️
src/cli/api/trackingplans.ts	0.00%	7 Missing ⚠️
... and 16 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #46       +/-   ##
===========================================
- Coverage    88.82%   8.50%   -80.32%     
===========================================
  Files            3      29       +26     
  Lines          170    1399     +1229     
  Branches        58     308      +250     
===========================================
- Hits           151     119       -32     
- Misses          17    1211     +1194     
- Partials         2      69       +67     

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[akashrpo]

Do we have to update the license ?

[saikumarrs]

Do we have to update the license ?

That's a good question. In a lot of the public repos, we have moved to elastic license v2. Let's circle this back with @sivashanmukh once.