Add MT disclaimer and CTA

[scott-klaytn]

Proposed changes

Machine translation (MT) has been implemented in Kaia Docs to bridge the gap between rapid content updates and translation throughput. While MT provides immediate access to documentation in multiple languages, it may contain inaccuracies. To maintain transparency and encourage community participation, we're adding a prominent disclaimer and call-to-action on non-English pages. This informs users about MT usage and invites them to contribute to improving translation quality through our Crowdin project.

• Add a machine translation disclaimer and CTA (call to action) to the top of every non-English (FYI, it's translatable via Crowdin)
• Add a CTA ("Help Us Translate") that contains the link to translation contributing guide to the bottom of locale dropdown.

Types of changes

Please put an x in the boxes related to your change.

• Minor Issues and Typos
• Major Content Contribution
• Others

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to reach out. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING GUIDELINES
• I have read the CLA and signed by comment I have read the CLA Document and I hereby sign the CLA in first time contribute
• I have added necessary documentation (if appropriate)
• Any dependent changes have been merged and published in downstream modules

Related issues

Further comments