2nd text row in shape labels in the UI, painted using wrong color.

[mattiasgronlund]

Thanks for a great plugin!

If one add two rows of text to a shape, only the first row will display in the editor using the given font color, any subsequent rows will always be displayed using light-dark(var(--text-color), var(--dark-text-color)).

As a workaround I added the following code to webview-content.html, which fixed my problem:

			.geDiagramContainer,
			.geDiagramContainer * {
				color: inherit;
			}

I suspect #485 might be related here, as C4 often use multiple text lines...