Added theme, reworked UI

pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
   cupertino_icons: ^1.0.2
   fl_chart: ^0.65.0
   logging: ^1.2.0
-  flutter_bloc: ^8.1.3
+  flutter_bloc: ^8.1.4
   path_provider: ^2.1.1
   equatable: ^2.0.5
   rxdart: ^0.27.7
@@ -27,6 +27,7 @@ dependencies:
   formz: ^0.6.1
   uuid: ^4.3.2
   flutter_typeahead: ^5.2.0
+  flex_color_picker: ^3.3.1
 
 dev_dependencies:
   flutter_test: