Upgrade Ionic 3 to 5 Angular to StencilJS Web Components PWA + Android MAP API

I have an old Ionic 3.14.0 / Angular 4.1.0 project which you'll need to upgrade to Ionic 5, and also replace Angular with StencilJS Web Components instead. The Ionic UI shows both a listview of users and a mapview with map markers on a map and the distance from current user to other users. A click on each map marker shows details about that user. So all this functionality already work, your task is only to udate Ionic 3 to Ionic 5 and also to replace Angular with StencilJS Web Components. You shall not use any JS framework apart from Ionic (NOT Angular, React, Vue etc. You shall replace Angular with Web Components). Your tasks per milestone are: 1. Upgrade the UI from Ionic 3 to ionic 5. 2. Push changes to the repo. = MILESTONE 1 released 3. Replace Angular with StencilJS Web Components 4. Allow me 2 days of testing of both the Android app and the PWA in various tablets and different mobile phones and browsers. 5. Fix new bugs 6. Push your changes to the repository = MILESTONE 2 released The live version uses a Rest API from a WordPress site, but you will need to use offline mock data JSON instead.