Fixed dependency versions

Author: JaffaKetchup

example/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
   auto_size_text: ^3.0.0
   badges: ^3.1.2
   better_open_file: ^3.6.5
-  collection: ^1.19.0
+  collection: ^1.18.0
   dart_earcut: ^1.1.0
   file_picker: ^8.0.6
   flutter:

pubspec.yaml

@@ -28,9 +28,8 @@ environment:
 
 dependencies:
   async: ^2.11.0
-  collection: ^1.18.0
+  collection: 1.18.0
   dart_earcut: ^1.1.0
-  #flat_buffers: ^23.5.26
   flutter:
     sdk: flutter
   flutter_map: ^7.0.0