style: apply fixes from qa

Author: innocenzi

src/Tempest/View/src/Components/Icon.php

@@ -50,7 +50,7 @@ public function compile(ViewComponentElement $element): string
      * it will be downloaded it on the fly and cached for future use.
      * If the icon is already in the cache, it will be served from there.
      */
-    public function render(string $name, ?string $class): ?string
+    public function render(string $name, ?string $class): string
     {
         $svg = self::svg($name);
 
@@ -61,7 +61,7 @@ public function render(string $name, ?string $class): ?string
         }
 
         if ($class !== null) {
-            $svg = self::injectClass($svg, $class);
+            return self::injectClass($svg, $class);
         }
 
         return $svg;

tests/Integration/View/IconComponentTest.php

@@ -161,7 +161,7 @@ public function test_it_forwards_the_class_attribute(): void
             ),
         );
     }
-    
+
     public function test_with_dynamic_data(): void
     {
         $mockHttpClient = $this->createMock(HttpClient::class);
@@ -175,7 +175,7 @@ public function test_with_dynamic_data(): void
 
         $rendered = $this->render(
             '<x-icon :name="$iconName" class="size-5" />',
-            iconName: "ph:eye",
+            iconName: 'ph:eye',
         );
 
         $this->assertSame(