Make it easier to style a selected TreeView node that contains a custom razor component

[Jinjinov]

Is your feature request related to a problem? Please describe.

Simple TreeView nodes like in https://github.com/Megabit/Blazorise/blob/master/Demos/Blazorise.Demo/Pages/Tests/TreeViewPage.razor#L20
can be styled easily.

But as soon as we add a complex element inside the <NodeContent> we get a graphical glitch on the selected node - two bars, one above and one below the component:

because _TreeViewNodeContent.razor.cs adds p-1 cursor-pointer bg-primary text-white

the only way to remove p-1 is to add SelectedNodeStyling="@((item, style) => { style.Style = "padding:0!important"; })"

Describe the solution you'd like

Make it easier to use a custom razor component inside a <NodeContent>.

Not everyone will figure out to add { style.Style = "padding:0!important"; }

Perhaps SelectedNodeClasses that override p-1 cursor-pointer bg-primary text-white ?

Additional context

SelectedNodeStyling is not documented: https://blazorise.com/docs/extensions/treeview