Downgraded MudBlazor to 6.15.0 to avoid white button bug on mobile.

Author: GuyWhoKnowsTheGuy

src/MudBlazorPages/MudBlazorPages.csproj

@@ -16,7 +16,7 @@
     <PackageReference Include="Blazored.LocalStorage" Version="4.5.0" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.2" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.2" PrivateAssets="all" />
-    <PackageReference Include="MudBlazor" Version="6.16.0" />
+    <PackageReference Include="MudBlazor" Version="6.15.0" />
   </ItemGroup>
 
 </Project>