Allow always showing hotbar

[ryanlua]

Is your feature request related to a problem?

When the hotbar is empty it is hidden.

Describe the solution you'd like

Adding a attribute to allow for the hotbar to always show.

Describe alternatives you've considered

No response

Additional context

via DevForum reply

Code of Conduct

• I have read and agree to the project's Code of Conduct

[ryanlua]

We can focus on developer APIs, specifically components in v2, to enable easy implementation of this.