Styles for Live Blazor website

[kant2002]

I notice some glitches in UI on Desktop in the tree view, so I take liberty and play with Chrome to improve status

This small snippet should vertically align icon in the tree with text representing the tree.

.ui-treenode-content div {
    vertical-align: middle;
}

img {
    padding: 0 6px 3px 0;
}

If you add this style margin-bottom: 0.5rem; directly to Dark Mode button, I think gap from bottom and from top would be same, and consistent with other 3 buttons.

I see that icons in the tree do not aligned between nodes with children, and child-less nodes. Have no fix for that.