Fix/arduino zephyr modified articles

[f-hollow]

📝 Description

This PR fixes the following issues not addressed during review process in #584:

• Adds aliases to relocated articles to create URL redirects
• Fixes some typos
• Removes the json file holding dynamic content (this file is pushed directly to the production server and shouldn't be committed)

🔗 Related

• PR Arduino Articles Relocation, Dynamic Content for Zephyr, Arduino Status Article #584

🧪 Testing (Hugo)

[f-hollow]

@rftafas PTAL

Sorry, I didn't point out these issues in time and now addressing them post factum.

Thank you again for your effort, the Arduino and Zephyr articles are neatly arranged now!

We improved our CI. Next time missing lastmod or aliases will be reported proactively with required fixes.

[github-actions]

🎉 A preview for this PR is available at: https://preview-developer.espressif.com/pr657/

[f-hollow]

@rftafas Unless you see the legend, ❌ as well as 🚫 gives the impression that a feature is not supported.

On chip support pages, we use ⏳ to indicate "not yet supported". ❌ can be used to indicate unsupported features, because it looks more balanced with other emojis as opposed to 🚫.

What do you think?

[pedrominatel]

LGTM, thank you @f-hollow.