Hides the dropdown for environments by default

What does this MR do?

Because we need to use .d-block with .dropdown-menu in order to not add more CSS we can't use v-show, since d-block has an important statement.

What are the relevant issue numbers?

Closes #9714 (closed)

Does this MR meet the acceptance criteria?

• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides