Fix deleting comment causes empty screen bug

lib/controls/timeline/flattened_tree_entry_control.dart

@@ -3,6 +3,8 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:logging/logging.dart';
 import 'package:provider/provider.dart';
+import 'package:relatica/utils/snackbar_builder.dart';
+import 'package:result_monad/result_monad.dart';
 
 import '../../globals.dart';
 import '../../models/filters/timeline_entry_filter.dart';
@@ -316,11 +318,21 @@ class _StatusControlState extends State<FlattenedTreeEntryControl> {
     if (confirm == true) {
       await getIt<ActiveProfileSelector<TimelineManager>>()
           .activeEntry
-          .andThenAsync(
-              (tm) async => await tm.deleteEntryById(item.timelineEntry.id));
+          .transformAsync(
+              (tm) async => await tm.deleteEntryById(item.timelineEntry.id))
+          .match(onSuccess: (_) {
+        isProcessing = false;
+        if (!isPost && context.canPop()) {
+          context.pop();
+        }
+      }, onError: (e) {
+        isProcessing = false;
+        buildSnackbar(
+          context,
+          'Error deleting ${isPost ? "Post" : "Comment"}: $e',
+        );
+      });
     }
-    setState(() {
-      isProcessing = false;
-    });
+    setState(() {});
   }
 }