navBar bugfix

[kjeom]

Proposed changes

• Resolve the environment variable bugfix

Types of changes

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• [x] Minor Issues and Typos
• [ ] Major Content Contribution
• [ ] Others

Checklist

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• [ ] I have read the CONTRIBUTING GUIDELINES
• [ ] I have signed the CLA
• [ ] I have added necessary documentation (if appropriate)
• [ ] Any dependent changes have been merged and published in downstream modules

[kjeom]

@scott-klaytn @ayo-klaytn @praveen-klaytn Could you review it?