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/data/restore.ts

@@ -280,7 +280,7 @@ export const restoreAppState = (
 };
 
 export const restore = (
-  data: ImportedDataState | null,
+  data: Pick<ImportedDataState, "appState" | "elements" | "files"> | null,
   /**
    * Local AppState (`this.state` or initial state from localStorage) so that we
    * don't overwrite local state with default values (when values not
@@ -306,7 +306,7 @@ const restoreLibraryItem = (libraryItem: LibraryItem) => {
 };
 
 export const restoreLibraryItems = (
-  libraryItems: NonOptional<ImportedDataState["libraryItems"]>,
+  libraryItems: ImportedDataState["libraryItems"] = [],
   defaultStatus: LibraryItem["status"],
 ) => {
   const restoredItems: LibraryItem[] = [];