MAPG-199 fix issues found by PHPStan

src/Cli/LinkViewCommand.php

@@ -11,7 +11,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 
 class LinkViewCommand extends Command
 {
-    public function configure()
+    public function configure(): void
     {
         $this->setName('view:link')
             ->setDescription('Linking of views.')