project panel: Fix preview tabs not working when enabled (#20416)
Thorsten Ball
and
Piotr
created
PR #20154 introduced a regression and essentially disabled preview tabs
in code.
This fixes it and restores the old preview tabs behavior.
Release Notes:
- Fixed preview tabs being disabled in code, even if they were enabled
in the settings.
Co-authored-by: Piotr <piotr@zed.dev>