chore: add .gitignore entries for the Dart/Flutter files (#10399)

kevmoo · joehan · commit 188ea29e9a0b · 2026-04-27T12:22:36.000-07:00
In the template directory
diff --git a/.gitignore b/.gitignore
@@ -35,3 +35,7 @@ dev/
 clean/
 .gemini/
 .env
+
+# Dart/Flutter
+.dart_tool/
+**/pubspec.lock
