Remove trailing whitespace in pubspec.yaml files

Cleaned up unnecessary trailing whitespace in the dependencies section of dart and flutter pubspec.yaml files to improve formatting consistency.

Author: pastordee

packages/dart/pubspec.yaml

@@ -40,7 +40,7 @@ dependencies:
   universal_io: ^2.2.2
   xxtea: ^2.1.0
   collection: ^1.18.0
-  cross_file: ^0.3.3+8
+  cross_file: ^0.3.3+8 
 
 dev_dependencies:
   lints: ^5.1.1

packages/flutter/pubspec.yaml

@@ -38,7 +38,7 @@ dependencies:
   #   path: ../dart
 
   # Networking
-  connectivity_plus: ^6.1.5
+  connectivity_plus: ^6.1.5 
 
   #Database
   shared_preferences: ^2.5.1