Refactor <style> Resource implementation to group on flush

There is a problem with <style> as resource. For css-in-js libs there may be an very large number of these hoistables
being created. The number of style tags can grow quickly and to help reduce the prevalence of this FIzz now aggregates all style tags for a given precedence into a single tag. The client can 'hydrate' against these componund tags but currently on the client insertions are done individually.

Author: gnoff

packages/react-dom-bindings/src/client/ReactDOMFloatClient.js

@@ -663,7 +663,7 @@ function styleTagPropsFromRawProps(
 function getStyleKey(href: string) {
   const limitedEscapedHref =
     escapeSelectorAttributeValueInsideDoubleQuotes(href);
-  return `href="${limitedEscapedHref}"`;
+  return `href~="${limitedEscapedHref}"`;
 }
 
 function getStyleTagSelectorFromKey(key: string) {