feat(curriculum): add a preview page to pyramid project

[a2937]

Checklist:

• I have read and followed the contribution guidelines.
• I have read and followed the how to open a pull request guide.
• My pull request targets the main branch of freeCodeCamp.
• I have tested these changes either locally on my machine, or GitPod.

Closes #54801

A new step 1 was created that explains what Javascript is and what the project is about. The old step 2 was also modified such that it didn't repeat itself on what Javascript was. The other challenges just had their numbers updated.

[JoyShaheb]

looks good to me 👍(fix the merge conflicts if you get any)

[camperbot]

Thanks for your pull request.

Please remove the changes made to the non-English versions of the files. No need to close this pull request; just add more commits as needed.

We require you to change only English versions of files in the codebase. Translations to corresponding files in other world languages are managed on our translation platform. Once your pull request is merged, changes will be synced automatically to other world languages.

Please visit our contributing guidelines to learn more about translating freeCodeCamp's resources.

As always, we value all of your contributions.

Happy contributing!

---

Note: This message was automatically generated by a bot. If you feel this message is in error or would like help resolving it, feel free to reach us in our contributor chat.

[a2937]

I think I merged it wrong.

[naomi-lgbt]

I think this is fine. Worst case scenario, the camper tries to write more code or something. Test will pass regardless.

[a2937]

I think I need to rebase this, again.