Feature/pn-10851 - web api call for Sender Dashboard

[ghost]

Short description

This PR also includes changes made for pn-data-viz library configuration (Feature/pn-10451)

List of changes proposed in this pull request

• add types for echarts
• add default theme for PnEcharts
• add route for sender dashboard page (Statistics.page.tsx)
• add FiledNotificationsStatistics component to test PnEcharts
• change Statistics.page.ts
• add Statistics menu item
• add getStatistics action to start web api call
• add getStatistics api call and the relative mock to simulate the server response
• change statistics/reducers.ts to manage and store the response

How to test

• login into pa-webapp
• verify the Statistics menu item is available and works (follow the route on click)
• verity the FiledNotificationsStatistics renders properly on the destination page
• using Redux DevTools verify the "statistics" state got filled with mock data (mocked api call)