Fix CssStyleDeclaration.GetPropertyValueAsync<T> return type

[sn0wcr4sh]

Description

Generic method GetPropertyValueAsync<T> returns type string, even though int was specified

Example reproducing the issue

// Arrange
await using var devtoolsContext = await coreWebView2.CreateDevToolsContextAsync();
var div = await devToolsContext.QuerySelectorAsync<HtmlDivElement>("#myDiv");  
var style = await div.GetStyleAsync();  

// Act
var zIndex = await style.GetPropertyValueAsync<int>("z-index");

// Assert
Assert.Equal(typeof(int), zIndex.GetType());

Expected behavior:

Get value of type int

Actual behavior:

Correct value is returned, but of type string

Versions

• WebView2.DevTools.Dom 3.0.0
• .NET Framework 4.8