Exposing timer return type globally

src/lib/components/MaintenancePopup.ts

@@ -30,7 +30,7 @@ export class MaintenancePopup extends BaseComponent {
   #tagsToAdd: Set<string> = new Set();
   #isPlanningToSubmit: boolean = false;
   #isSubmitting: boolean = false;
-  #tagsSubmissionTimer: number | null = null;
+  #tagsSubmissionTimer: Timeout | null = null;
   #emitter = emitterAt(this);
 
   /**

src/lib/extension/CustomCategoriesResolver.ts

@@ -6,7 +6,7 @@ export default class CustomCategoriesResolver {
   #tagCategories = new Map<string, string>();
   #compiledRegExps = new Map<RegExp, string>();
   #tagDropdowns: TagDropdownWrapper[] = [];
-  #nextQueuedUpdate = -1;
+  #nextQueuedUpdate: Timeout | null = null;
 
   constructor() {
     TagGroup.subscribe(this.#onTagGroupsReceived.bind(this));
@@ -24,7 +24,9 @@ export default class CustomCategoriesResolver {
   }
 
   #queueUpdatingTags() {
-    clearTimeout(this.#nextQueuedUpdate);
+    if (this.#nextQueuedUpdate) {
+      clearTimeout(this.#nextQueuedUpdate);
+    }
 
     this.#nextQueuedUpdate = setTimeout(
       this.#updateUnprocessedTags.bind(this),