S allius/issue394 (#400)

* store logging path in Config class

* rename template files and page files

* jump to referer page

- after changing the language, we jump to
  the referer page, if the attribute exists

* build and send list of log-files

* rename Download page into Log files

* initialize log-path in test config

* improve dashboard unit tests

 - add log file tests
 - check content-languages after language switch

* initialize config structure for log-file tests

* add test log file to project

* add sub_dir to test log path

- non files must be skipped. To test this we add
  a sub directory to the test log directory

* add german translations

* set quart debug flag for debug versions

* update changelog

app/src/web/conn_table.py

@@ -75,8 +75,8 @@ async def data_fetch():
         "proxy-cnt": f"<h3>{Infos.get_counter('ProxyMode_Cnt')}</h3>",
         "emulation-cnt": f"<h3>{Infos.get_counter('EmuMode_Cnt')}</h3>",
     }
-    data["conn-table"] = await render_template('conn_table.html.j2',
+    data["conn-table"] = await render_template('templ_conn_table.html.j2',
                                                table=get_table_data())
 
-    data["notes-list"] = await render_template('notes_list.html.j2')
+    data["notes-list"] = await render_template('templ_notes_list.html.j2')
     return data