make the styling consistent across all pages of the mobile version

src/components/mobile/DateTimeSelectionSheet.vue

@@ -1,7 +1,7 @@
 <template>
     <f7-sheet swipe-to-close swipe-handler=".swipe-handler" class="date-time-selection-sheet" style="height:auto"
               :opened="show" @sheet:open="onSheetOpen" @sheet:closed="onSheetClosed">
-        <f7-toolbar>
+        <f7-toolbar class="toolbar-with-swipe-handler">
             <div class="swipe-handler"></div>
             <div class="left">
                 <f7-link :text="tt('Now')" @click="setCurrentTime"></f7-link>
@@ -11,7 +11,7 @@
                 <f7-button round fill icon-f7="checkmark_alt" @click="confirm"></f7-button>
             </div>
         </f7-toolbar>
-        <f7-page-content class="padding-bottom">
+        <f7-page-content class="margin-top">
             <div class="block no-margin no-padding">
                 <date-time-picker ref="datetimepicker"
                                   datetime-picker-class="justify-content-center"