Version drop-down is not available in the 4.6.0 doc site

[DedunuKarunarathne]

Description

After the theme upgrade for MI 4.6.0 doc site, the version drop-down to navigate to previous doc versions is not visible.

Steps to Reproduce

N/A

Version

4.6.0 - main branch

Environment Details (with versions)

No response

[sanjulaonline]

can you assign me to this issue