Add secondary navbar

[g-despot]

Add a secondary navbar with a button for switching between docs (Build, Cloud, Academy, etc.).

[orca-security-eu]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Passed	SAST	0   4   0   0	View in Orca
Passed	Secrets	0   0   0   0	View in Orca
Passed	Vulnerabilities	0   0   0   0	View in Orca

🛡️ The following SAST misconfigurations have been detected

	NAME	FILE
	Detects Potential Object Injection via User Input	...heme/Navbar/index.js	View in code
	Detects Potential Object Injection via User Input	...heme/Navbar/index.js	View in code
	Detects Potential Object Injection via User Input	...heme/Navbar/index.js	View in code
	Detects Potential Object Injection via User Input	...heme/Navbar/index.js	View in code

[weaviate-git-bot]

Great to see you again! Thanks for the contribution.

beep boop - the Weaviate bot 👋🤖

PS:
Are you already a member of the Weaviate Slack channel?