Merge new-kb-treeview-disable-checkboxes-efbfdad54ae94133a22b09e932683628-2838 into production#2845

dimodi merged 2 commits intoproductiontelerik/blazor-docs:productionfrom

new-kb-treeview-disable-checkboxes-efbfdad54ae94133a22b09e932683628-2838telerik/blazor-docs:new-kb-treeview-disable-checkboxes-efbfdad54ae94133a22b09e932683628-2838Copy head branch name to clipboard