Add custom icon for oro-theme card

Author: deimonn

src/assets/icons/oro-theme.png

@@ -78,7 +78,7 @@ <h2>Extensions</h2>
 
   <sl-card>
     <b slot="header">
-      <img src="/assets/icons/extension.png"/>
+      <img src="/assets/icons/oro-theme.png"/>
       <span>oro-theme</span>
     </b>
     <p>Dark mode theme that aims to be both functional and aesthetically pleasing</p>