S allius/issue391 (#392)

* design counter on connection board

* display time of last update and add reload button

* chance `Updated` field to a real button

* Provide counter values for the dashboard

* change background color ot the top branch

- use dark-grey instead of black to reduce the contrast

* change color of counter tiles

* test proxy connection counter handling

* prepare conn-table and notes list building

* remove obsolete menue points

* store client mode for dashboard

* store inverters serial number for the dashboard

* store inverters serial number

* build connection table for dashboard

* add connection table to dashboard

* fix responsiveness of the tiles

* adapt unit tests

* remove test fake code

* increase test coverage, remove obsolete if statement

app/src/server.py

@@ -41,11 +41,16 @@ def my_get_locale():
     )
 
 
+def my_get_tz():
+    return 'CET'
+
+
 app = Quart(__name__,
             template_folder='web/templates',
             static_folder='web/static')
 babel = Babel(app,
               locale_selector=my_get_locale,
+              timezone_selector=my_get_tz,
               default_translation_directories='../translations')
 app.register_blueprint(web_routes)