First version of settings view

pubspec.yaml

@@ -20,6 +20,9 @@ dependencies:
   provider: ^6.1.5
   skeletonizer: ^2.1.0+1
   uuid: ^4.5.2
+  file_picker: ^10.3.6
+  json_schema: ^5.2.2
+  file_saver: ^0.3.1
 
 dev_dependencies:
   flutter_test:
@@ -30,6 +33,5 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
-
-assets:
-  - assets/schema.json
+  assets:
+    - assets/schema.json