Add isType assertions to FileTest for video files

Extended the FileTest unit test to include assertions for the isType method, specifically verifying correct type detection for 'video', 'image', 'audio', and 'text'.

Author: JosephGabito

tests/unit/Files/DTO/FileTest.php

@@ -207,6 +207,10 @@ public function testMimeTypeMethods(): void
         $this->assertFalse($file->isImage());
         $this->assertFalse($file->isAudio());
         $this->assertFalse($file->isText());
+        $this->assertTrue($file->isType('video'));
+        $this->assertFalse($file->isType('image'));
+        $this->assertFalse($file->isType('audio'));
+        $this->assertFalse($file->isType('text'));
     }
 
     /**