Added debug section to inspect extension's local storage

src/stores/debug.js

@@ -0,0 +1,19 @@
+import {writable} from "svelte/store";
+
+/**
+ * This is readable version of storages. Any changes made to these objects will not be sent to the local storage.
+ * @type {Writable<Record<string, Object>>}
+ */
+export const storagesCollection = writable({});
+
+chrome.storage.local.get(storages => {
+  storagesCollection.set(storages);
+});
+
+chrome.storage.local.onChanged.addListener(changes => {
+  storagesCollection.update(storages => {
+    for (let updatedStorageName of Object.keys(changes)) {
+      storages[updatedStorageName] = changes[updatedStorageName].newValue;
+    }
+  })
+});