can't figure out shared state issue--the updated composition won't show on the composer. moving on to dnd for promptitem orders and promptitem hiding.

src/lib/prompt.tsx

@@ -57,7 +57,7 @@ export function itemIsNugget(item: PromptItem): boolean {
 
 export type Composition = Array<PromptItem>;
 
-export const $library = atom<Library>([])
+export const $library = atom<Library>([]);
 
 export function addItemToLibrary(item: LibraryItem) {
     $library.set([

src/lib/util.tsx

@@ -0,0 +1,12 @@
+export function title(text: string) {
+    return (!text.length) ? "" : ((text.length === 1) ? text.toUpperCase() : text[0].toUpperCase() + text.substring(1).toLowerCase());
+}
+
+/**
+ * 
+ * @param arr Array to filter
+ * @param item item in the array to toggle.
+ */
+export function arrayToggle(arr : Array<any>, item : any) {
+
+}