fix host flag and simplify the headwind constructor

bluewind/__init__.py

@@ -1,12 +1,11 @@
 # Initialise flask
 from flask import Flask
 app = Flask(__name__)
-app.config['SERVER_NAME'] = '0.0.0.0:5000'
 app.config.from_prefixed_env()
 
 # Initialise the bluetooth stack
 from bluewind import headwind
-fan = headwind.Headwind(app, app.config["ADDRESS"])
+fan = headwind.Headwind(app.config["ADDRESS"])
 
 # Load the views
 from bluewind import views

bluewind/headwind/__init__.py

@@ -16,9 +16,7 @@ CHARACTERISTIC = "a026e038-0a7d-4ab3-97fa-f1500f9feb8b"
 
 class Headwind:
     fanClient = None
-    flaskApp = None
-    def __init__(self, flaskApp, address):
-        self.flaskApp = flaskApp
+    def __init__(self, address):
         self.fanClient = BleakClient(address)
 
     async def readSpeed(self):

main.py

@@ -2,4 +2,4 @@
 from bluewind import app
 
 if __name__ == '__main__':
-    app.run(debug=False)
+    app.run(debug=False, host='0.0.0.0')