Message feature local setup

Web:

yarn start -w
go run ./go/cmd/weshd
go run ./go/cmd/weshd 4243

Navigate to: http://localhost:19006/message
Navigate to: http://localhost:19006/message?weshPort=4243

ios:
- install gomobile

make build-ios-weshframework
npx expo prebuild --clean
npx expo run:ios

To build electron:
- yarn build:electron

To Do:
- expo-image-picker doesn't work after prebuild
- message read/unread status
- integrate @berty/weshnet-expo
- file upload/ image upload

Message data are store on the redux; and persisted using redux-persist.
- There is limitation of 6 MB on Android for Async storage
- Without persiting message on redux works; but takes time to load everything.
- So; we have to find a better solution to store and load the processed data