feat(closebutton)!: migrate to S2 (#2564)

BREAKING CHANGE: migrates Close Button to Spectrum 2

Additionally:
* test: increase chromatic coverage
* fix(closebutton): pass staticColor as arg for SB display
* chore(closebutton): remove themes dir
* docs(closebutton): adds s2 migration notes
* chore(closebutton): specify s2 tokens release for dependency

---------

Co-authored-by: Patrick Fulton <pfulton@adobe.com>

Author: 2 people

components/closebutton/stories/template.js

@@ -21,17 +21,17 @@ export const Template = ({
 }) => {
 	let iconName = "Cross300";
 	switch (size) {
-		case "s":
-			iconName = "Cross200";
-			break;
-		case "l":
-			iconName = "Cross400";
-			break;
-		case "xl":
-			iconName = "Cross500";
-			break;
-		default:
-			iconName = "Cross300";
+	case "s":
+		iconName = "Cross200";
+		break;
+	case "l":
+		iconName = "Cross400";
+		break;
+	case "xl":
+		iconName = "Cross500";
+		break;
+	default:
+		iconName = "Cross300";
 	}
 
 	return html`