- Data Handler : Removed deprecated calls
- DB Handler : Removed duplicate deletion.
- Data Packet : Corrected inversion of Humidity / Pressure (oops)
- Graph : Padded time values in graph x-axis
- Settings : Added Storage deletion button, linked to DB.

# Conflicts:
#	.flutter-plugins-dependencies
#	lib/ui/data_widget.dart
#	lib/utils/pm_symbol.dart

Amends :
- + documentation

UI Advances

See merge request Nicolas.Boeckh/la_app_xos!3

DB:

- DataHandler pumps to DB
- Network takes from DB and sets export flag
- DataPacket has overloaded constructors depending on reconstruction usage.

Settings :
  - Layout (ExpansionTile)
  - WIP Fix RenderFlex Error
  - MapSettings Removed, added to Settings.

Graph:
- Graph WIP (takes from DB).
- TODO State Management.

Bugs:
- BTLE reco/deco
- RenderFlex in Settings
- Values not updating in graph, state management.

- Found

Reformed DB initialisation to be non-null. Linked debug buttons to action.  Added extraData to DataPacket for firmware v2

Proximal points and ui

See merge request Nicolas.Boeckh/la_app_xos!2

4.0.0

See merge request Nicolas.Boeckh/la_app_xos!1

Removed statefulness, fixed handler, POST requests, added map, fixed user interaction, fixed my own stupidity, etc.