Minor improvements

- use a one-line log format
- load templates only once
- fixed typos
- fix reset timezone in ui settings
- hide bookmarks headline if there are none

modules/webapp/src/main/elm/Comp/NotificationHookForm.elm

@@ -308,7 +308,7 @@ view texts settings model =
                 (Comp.EventSample.viewJson texts.eventSample False model.eventSampleModel)
             ]
         , div [ class "mt-4" ]
-            [ formHeader "Test Delviery"
+            [ formHeader "Test Delivery"
             , Html.map DeliveryTestMsg
                 (Comp.NotificationTest.view
                     { runDisabled = getHook model == Nothing }

modules/webapp/src/main/elm/Comp/UiSettingsForm.elm

@@ -569,7 +569,7 @@ update flags sett msg model =
                 newSettings =
                     case tab of
                         GeneralTab ->
-                            { sett | uiLang = Nothing, sideMenuVisible = Nothing }
+                            { sett | uiLang = Nothing, timeZone = Nothing, sideMenuVisible = Nothing }
 
                         SearchTab ->
                             { sett