added local assets for 404 page shenanigans, added pokedex header, and continued to add set icon mappings

src/components/PokedexHeader.astro

@@ -0,0 +1,26 @@
+---
+import '/src/assets/css/main.scss';
+import StickyFilter from './StickyFilter.astro';
+---
+
+<header class="header-top position-fixed w-100 top-0 d-none d-md-inline-block">
+    <div class="header-wrap">
+        <div class="header-content">
+            <div class="header-logo">
+                <h1><div class="blueCircle m-2 ms-3"></div></a></h1> <!-- (z:2) --></h1>
+            </div>
+        </div>
+        <div class="header-logo-patch"></div>
+        <nav class="nav-main horizontal-nav">
+        </nav>
+        <div class="header-social pt-3">
+            <div class="redCircle"></div>
+            <div class="yellowCircle"></div>
+            <div class="greenCircle"></div>
+
+            <nav class="nav-social horizontal-nav">
+                <StickyFilter />
+            </nav> <!-- end .nav-social -->
+        </div> <!-- end .header-social -->
+    </div>
+</header>