feat(backend): add scheduled send functionality

Removed redundant showRoutingToast() and hideRoutingToast() calls in reload_and_redirect function as navigate() handles them. Streamlined the process for scheduling and snoozing actions.

modules/imap/js_modules/utils/handleNexterDateAction.js

@@ -7,14 +7,11 @@ function processNextActionDate(e) {
         }
         isReloading = true;
 
-        showRoutingToast();
-
         try {
             Hm_Folders.reload_folders(true);
             let path = getListPathParam();
             await navigate(`?page=message_list&list_path=${path}`);
         } finally {
-            hideRoutingToast();
             isReloading = false;
         }
     };