Added swiping on mobile, fixed index.html, small changes to css

scanner/floatapp/endpoints.py

@@ -35,7 +35,7 @@ def scan_photos():
 
 @app.route("/auth")
 def login():
-    if request.args.get('logout'):
+    if 'logout' in request.args:
         logout_user()
 
     if current_user.is_authenticated: