feat: rewrite library state management & related refactor (#5067)

* support libraryItems promise for `updateScene()` and use `importLibrary`

* fix typing for `getLibraryItemsFromStorage()`

* remove `libraryItemsFromStorage` hack

if there was a point to it then I'm missing it, but this part will be rewritten anyway

* rewrite state handling

(temporarily removed loading states)

* add async support

* refactor and deduplicate library importing logic

* hide hints when library open

* fix snaps

* support promise in `initialData.libraryItems`

* add default to params instead

src/components/HintViewer.tsx

@@ -23,6 +23,10 @@ const getHints = ({ appState, elements, isMobile }: HintViewerProps) => {
   const { activeTool, isResizing, isRotating, lastPointerDownWith } = appState;
   const multiMode = appState.multiElement !== null;
 
+  if (appState.isLibraryOpen) {
+    return null;
+  }
+
   if (isEraserActive(appState)) {
     return t("hints.eraserRevert");
   }