Fix url

Author: BigBang1112

Src/BigBang1112.Gbx/Client/Shared/MainLayout.razor

@@ -6,7 +6,7 @@
 <div class="page">
     <header class="grainy">
         <div>
-            <a href="https://gbxexplorer.net" class="button menu-button" target="_blank">
+            <a href="https://explorer.gbx.tools" class="button menu-button" target="_blank">
                 Explorer
             </a>
             <a href="https://github.com/bigbang1112-cz/gbx" class="button menu-button" target="_blank">