perf: optimized new power assets

Author: jacobtread

src/lib/components/inventory/characters/power/PowerEditorEvolution.svelte

@@ -21,7 +21,10 @@
       disabled={!editable}
     >
       <div class="evolution-icon" data-index={index}>
-        <img src={`/assets/powers/${power.iconSet}.png`} alt={evolution.name} />
+        <img
+          src={`/assets/powers/${power.iconSet}.webp`}
+          alt={evolution.name}
+        />
       </div>
       <p class="evolution-name">{evolution.name}</p>
     </button>

src/lib/components/inventory/characters/power/PowerLevelDisplay.svelte

@@ -10,7 +10,7 @@
   <div>
     <div class="power-icon rank-1">
       <img
-        src={`/assets/powers/${power.iconSet}.png`}
+        src={`/assets/powers/${power.iconSet}.webp`}
         alt={power.evolutions[0].name}
       />
     </div>