feat(components): update heading tags in blade templates

- Updated the heading tags in the `list_all.blade.php` files for champions, emotes, icons, and skins from `<h2>` to `<h1>`.
- Also updated the heading tag in the `features.blade.php` file from `<h2>` to `<h1>`.

resources/views/components/icons/list_all.blade.php

@@ -2,11 +2,11 @@
 /** @var App\Models\SummonerIcon $icon */ ?>
 
 <section class="max-w-screen-xl mx-auto mt-12">
-    <h2
+    <h1
         class="text-3xl font-bold text-center text-transparent uppercase sm:text-4xl
         bg-gradient-to-bl from-orange-300 to-orange-500 bg-clip-text">
-        Summoner Icons</h2>
-    
+        Summoner Icons</h1>
+
     <x-icons.searchbar/>
 
     <div class="container mx-auto p-4 flex items-center justify-center mt-3">