fix: unit tests fix

src/util/convenience-functions.ts

@@ -11,4 +11,9 @@ export const uniqueNumericIdCreator = (initial = 0): (() => number) => {
     return () => ++currentCount;
 };
 
+export const abstractNumUniqueNumericId = uniqueNumericIdCreator();
+export const concreteNumUniqueNumericId = uniqueNumericIdCreator(1); // Setting initial to 1 as we have numId = 1 for "default-bullet-numbering"
+export const docPropertiesUniqueNumericId = uniqueNumericIdCreator();
+export const bookmarkUniqueNumericId = uniqueNumericIdCreator();
+
 export const uniqueId = (): string => nanoid().toLowerCase();