Show segment name when editing

[rolodato]

Is your feature request related to a problem? Please describe.

The modal for editing a segment does not show the name of the selected segment. For example, the I've erased the segment name here and it's impossible to tell which segment I'm editing:

Similarly, if you switch to a different tab, that information is nowhere to be found:

This is error-prone, especially customers with many segments or similarly-named segments.

Describe the solution you'd like.

The most straightforward solution would be to show the pre-existing segment name when editing it, just how we already do for features:

Describe alternatives you've considered

🤷

Additional context

No response