Solve Android Keyboard issues , add color schema and isRTL flag form design

[Azmaa22]

• change the text editing controller generation to only declaration at simple_json_form_field file line 41
• add Theme.of(context).colorScheme.primary to apply submit button at form_button file line 117
• add isRTL value in default values file and use it in some files to use to handle the alignment of input label according to the app localization

• some of screenshots after modification: