S allius/issue393 (#403)

* display proxy version on dashboard

* add MQTT page

* styles adjusted on the different pages

- use same colors
- add bordered shadow to all cards and tables

* fix unit tests

* migrate the conn table to a general table

- rename the template file
- get headline from table description

* remove footer from index page

* make version string translateable

* cleanup

* remove stripped table rows

* add mqtt info table

* translate mqtt page

* don't fetch notes list for the log-page

* fix Mqtt init call for unit tests

* add mqtt-fetch test

* check received counter in unit test

app/src/server.py

@@ -145,6 +145,10 @@ def main():   # pragma: no cover
     serv_name = os.getenv('SERVICE_NAME', 'proxy')
     version = os.getenv('VERSION', 'unknown')
 
+    @app.context_processor
+    def utility_processor():
+        return dict(version=version)
+
     setattr(logging.handlers, "log_path", args.log_path)
     setattr(logging.handlers, "log_backups", args.log_backups)
     os.makedirs(args.log_path, exist_ok=True)