Revert "fix: update sidebar counter on task add from CLI"

This reverts commit d602d96.

Fix was also implemented upstream in main.

Author: PhilipWhiteside

core/Services/Store.vala

@@ -654,10 +654,6 @@ public class Services.Store : GLib.Object {
     }
     #endif
 
-    public void clear_items_by_project_cache (string project_id) {
-        _items_by_project_cache.unset (project_id);
-    }
-
     public void add_item (Objects.Item item, bool insert = true) {
         items.add (item);
         item_added (item, insert);

src/MainWindow.vala

@@ -195,8 +195,9 @@ public class MainWindow : Adw.ApplicationWindow {
                 Objects.Item item = Services.Database.get_default ().get_item_by_id (id);
                 Gee.ArrayList<Objects.Reminder> reminders = Services.Database.get_default ().get_reminders_by_item_id (id);
 
-                Services.Store.instance ().clear_items_by_project_cache (item.project_id);
+                Services.Store.instance ().clear_project_cache (item.project_id);
                 Services.Store.instance ().add_item (item);
+
                 foreach (Objects.Reminder reminder in reminders) {
                     item.add_reminder_events (reminder);
                 }