Docs: Add missing semicolon (#1864)

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- Documentation updates
- Automated tests

docs/core/extending/models.md

@@ -123,7 +123,7 @@ $newStaticMethod = \Lunar\Models\ProductOption::getSizesStatic();
 ```php
 namespace App\Models;
 
-use App\Concerns\SearchableTrait
+use App\Concerns\SearchableTrait;
 
 class Product extends \Lunar\Models\Product
 {