lit compatibility

Aims to improve compatibility for the lit framework (e.g. what Reddit is using).

1 - Adds support for adoptedStyleSheets to the Document and ShadowRoot
2 - Adds mock support for replace and replaceSync to the CSSStyleSheet
3 - Optionally include shadowroot in dump
4 - Special-case setting innerHTML on a TemplateElement

src/main.zig

@@ -135,8 +135,9 @@ fn run(alloc: Allocator) !void {
             // dump
             if (opts.dump) {
                 try page.dump(.{
-                    .exclude_scripts = opts.noscript,
+                    .page = page,
                     .with_base = opts.withbase,
+                    .exclude_scripts = opts.noscript,
                 }, std.io.getStdOut());
             }
         },