Nova 5 Tab keeps gap when the relationship is not searchable

[williamcruzme]

• Laravel Version: 11.45.1
• Nova Version: 5.7.3
• PHP Version: 8.2.28
• Database Driver & Version: MySQL
• Operating System and Version: MacOS 15.5
• Browser type and version: Chrome

Description:

When the Nova Resource contains $searchable as false, the Tab keeps the gap above, also when there is no filters/actions:

Detailed steps to reproduce the issue on a fresh Nova installation:

Tab::group(fields: [
    HasMany::make("What's Going On?", 'lifecycle', 'App\Nova\TaskLifecycle'),
    HasMany::make('Related Requests', 'requests', 'App\Nova\Request'),
    HasMany::make('Past Retries', 'retries', 'App\Nova\Retry'),
])