Refactor:

- Files have been categorised for clarity. The deliverables are not affected.

src/common/stores.ts

@@ -0,0 +1,7 @@
+import { PersistentMap } from "../lib/src/dataobject/PersistentMap.ts";
+
+export let sameChangePairs: PersistentMap<number[]>;
+
+export function initializeStores(vaultName: string) {
+    sameChangePairs = new PersistentMap<number[]>(`ls-persist-same-changes-${vaultName}`);
+}