Update .gitignore file

Author: CoderJava

.gitignore

@@ -31,15 +31,15 @@
 .flutter-plugins-dependencies
 
 # Linux
-linux/flutter/generated_plugin_registrant.cc
-linux/flutter/generated_plugin_registrant.h
+/linux/flutter/generated_plugin_registrant.cc
+/linux/flutter/generated_plugin_registrant.h
 
 # Mac
-macos/Flutter/GeneratedPluginRegistrant.swift
+/macos/Flutter/GeneratedPluginRegistrant.swift
 
 # Windows
-windows/flutter/generated_plugin_registrant.cc
-windows/flutter/generated_plugin_registrant.h
+/windows/flutter/generated_plugin_registrant.cc
+/windows/flutter/generated_plugin_registrant.h
 
 # Web related
 lib/generated_plugin_registrant.dart