refactor(icon): simplify icon identifier parsing

Author: xHeaven

packages/icon/src/Icon.php

@@ -30,13 +30,7 @@ public function __construct(
      */
     public function render(string $icon): ?string
     {
-        $parsedIconIdentifier = $this->parseIconIdentifier($icon);
-
-        if ($parsedIconIdentifier === null) {
-            return null;
-        }
-
-        [$collection, $iconName] = $parsedIconIdentifier;
+        [$collection, $iconName] = $this->parseIconIdentifier($icon) ?? [null, null];
 
         if ($this->iconCache->get("icon-failure-{$collection}-{$iconName}")) {
             return null;