[Feature Request]: Enable applies to label hover text in tab titles

### Prerequisites

- [x] I have searched existing issues to ensure this feature hasn't already been requested
- [x] I have tested using the latest version of docs-builder

### What problem are you trying to solve?

When an applies to label is used as the title of a tab, the pop up that normally appears when you hover over an applies to does not appear.

The hover text is helpful because it helps users understand what the labels mean. IMO it's particularly helpful for explaining what "planned" means.

### Proposed Solution

Make it so the hover text still appears when the applies to labels are within a tab heading.

### Examples and Research

### Alternative Solutions

_No response_

### Additional Context

_No response_

### How important is this feature to you?

Important