Add a note about BlazorWebAssemblyLoadAllGlobalizationData (#20197)

Author: pranavkm

aspnetcore/blazor/globalization-localization.md

@@ -60,7 +60,15 @@ To explicitly configure the culture, set <xref:System.Globalization.CultureInfo.
 
 ::: moniker range=">= aspnetcore-5.0"
 
-By default, Blazor WebAssembly carries globalization resources required to display values, such as dates and currency, in the user's culture. If the app doesn't require localization, you may configure the app to support the invariant culture, which is based on the `en-US` culture:
+By default, Blazor WebAssembly carries minimal globalization resources required to display values, such as dates and currency, in the user's culture. Applications that must support dynamically changing the culture should configure `BlazorWebAssemblyLoadAllGlobalizationData` in the project file:
+
+```xml
+<PropertyGroup>
+  <BlazorWebAssemblyLoadAllGlobalizationData>true</BlazorWebAssemblyLoadAllGlobalizationData>
+</PropertyGroup>
+```
+
+If the app doesn't require localization, you may configure the app to support the invariant culture, which is based on the `en-US` culture:
 
 ```xml
 <PropertyGroup>