[blazor] Apply disableDotnet6Compatibility to fix hotreload (#47876)

Author: maraf

src/Components/Web.JS/src/Platform/Mono/MonoPlatform.ts

@@ -305,6 +305,7 @@ function prepareRuntimeConfig(options: Partial<WebAssemblyStartOptions>, platfor
     onConfigLoaded,
     onDownloadResourceProgress: setProgress,
     config,
+    disableDotnet6Compatibility: false,
     print,
     printErr,
   };