refactor: move setting allNotesCount_ into action (#877)

app/assets/javascripts/ui_models/app_state/tags_state.ts

@@ -95,6 +95,7 @@ export class TagsState {
       hasAtLeastOneFolder: computed,
       allNotesCount_: observable,
       allNotesCount: computed,
+      setAllNotesCount: action,
 
       selected_: observable.ref,
       previouslySelected_: observable.ref,
@@ -148,9 +149,7 @@ export class TagsState {
     appEventListeners.push(
       this.application.addNoteCountChangeObserver((tagUuid) => {
         if (!tagUuid) {
-          runInAction(() => {
-            this.allNotesCount_ = this.application.allCountableNotesCount();
-          });
+          this.setAllNotesCount(this.application.allCountableNotesCount());
         } else {
           this.tagsCountsState.update([
             this.application.findItem(tagUuid) as SNTag,
@@ -238,6 +237,10 @@ export class TagsState {
     return this.tags.length;
   }
 
+  setAllNotesCount(allNotesCount: number) {
+    this.allNotesCount_ = allNotesCount;
+  }
+
   public get allNotesCount(): number {
     return this.allNotesCount_;
   }