feat: add editing support for trigger subscriptions (#29957)

Co-authored-by: yyh <yuanyouhuilyz@gmail.com>

web/i18n/en-US/common.ts

@@ -21,6 +21,7 @@ const translation = {
     cancel: 'Cancel',
     clear: 'Clear',
     save: 'Save',
+    saving: 'Saving...',
     yes: 'Yes',
     no: 'No',
     deleteConfirmTitle: 'Delete?',

web/i18n/en-US/plugin-trigger.ts

@@ -30,6 +30,11 @@ const translation = {
           unauthorized: 'Manual',
         },
         actions: {
+          edit: {
+            title: 'Edit Subscription',
+            success: 'Subscription updated successfully',
+            error: 'Failed to update subscription',
+          },
           delete: 'Delete',
           deleteConfirm: {
             title: 'Delete {{name}}?',