Bump MudBlazor and Microsoft.AspNetCore.Components.Web

Bumps [MudBlazor](https://github.com/MudBlazor/MudBlazor) and [Microsoft.AspNetCore.Components.Web](https://github.com/dotnet/aspnetcore). These dependencies needed to be updated together.

Updates `MudBlazor` from 6.9.0 to 6.15.0
- [Release notes](https://github.com/MudBlazor/MudBlazor/releases)
- [Changelog](https://github.com/MudBlazor/MudBlazor/blob/dev/CHANGELOG.md)
- [Commits](MudBlazor/MudBlazor@v6.9.0...v6.15.0)

Updates `Microsoft.AspNetCore.Components.Web` from 7.0.5 to 8.0.1
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.5...v8.0.1)

---
updated-dependencies:
- dependency-name: MudBlazor
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Microsoft.AspNetCore.Components.Web
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

src/ListenTogether.Pages/ListenTogether.Pages.csproj

@@ -13,10 +13,10 @@
 
 	<ItemGroup>
 		<PackageReference Include="JiuLing.CommonLibs" Version="1.5.8" />
-		<PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="7.0.5" />
+		<PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="7.0.15" />
 		<PackageReference Include="Microsoft.Extensions.Http" Version="7.0.0" />
 		<PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
-		<PackageReference Include="MudBlazor" Version="6.9.0" />
+		<PackageReference Include="MudBlazor" Version="6.15.0" />
 		<PackageReference Include="Sve.Blazor.InfiniteScroll" Version="1.0.0-alpha" />
 	</ItemGroup>