feat: add rainbow layouts

Author: sm17p

.changeset/witty-coats-build.md

@@ -0,0 +1,5 @@
+---
+"amgiflol": patch
+---
+
+feat: add rainbow layouts

src/app.d.ts

@@ -79,6 +79,10 @@ declare global {
 
 		interface UIStore {
 			isActive: boolean;
+			rainbowLayout: {
+				css?: CSSStyleSheet;
+				enabled: boolean;
+			};
 			svg: {
 				mode: Mode;
 				showDistances: boolean;