fix `add_css` to allow custom stle hashes

src/compiler/compile/render_dom/index.ts

@@ -50,7 +50,7 @@ export default function dom(
 	if (should_add_css) {
 		body.push(b`
 			function ${add_css}(target) {
-				@append_styles(target, "${component.stylesheet.id.replace('svelte-', '')}", "${styles}");
+				@append_styles(target, "${component.stylesheet.id}", "${styles}");
 			}
 		`);
 	}

src/runtime/internal/dom.ts

@@ -115,14 +115,13 @@ function init_hydrate(target: NodeEx) {
 export function append_styles(
 	target: Node,
 	styleSheetId: string,
-	styles: string,
+	styles: string
-	styleId: string = `svelte-${styleSheetId}-style`
 ) {
 	const appendStylesTo = get_root_for_styles(target);
 
-	if (!appendStylesTo?.querySelector('#' + styleId)) {
+	if (!appendStylesTo?.querySelector(`#${styleSheetId}`)) {
 		const style = element('style');
-		style.id = styleId;
+		style.id = styleSheetId;
 		style.textContent = styles;
 		append(appendStylesTo, style);
 	}