Update the wiki : Culture info

[ElieTaillard]

We just need to write information in the wiki about how to configure the language of an application that use MaterialDesignInXaml.

• [ ] Update the Wiki

Related issue : https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/2318

[KHALED-LAKEHAL]

Thread.CurrentThread.CurrentCulture.ClearCachedData();

Thread.CurrentThread.CurrentUICulture.ClearCachedData();

CultureInfo.DefaultThreadCurrentCulture = cultureInfo;

CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;

Thread.CurrentThread.CurrentCulture = cultureInfo;

Thread.CurrentThread.CurrentUICulture = cultureInfo; 

FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement), new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(cultureInfo.IetfLanguageTag))); 

[Alex-451]

@Xaalek I would like to work on this. should I create a new Wiki Page or should I add it to MahApps Integration?

[ElieTaillard]

@Alex-451 Great ! I think this information should be written in the Gettind started guide