improve ui

src/views/mobile/About.vue

@@ -12,7 +12,7 @@
         <f7-popup push with-subnavbar swipe-to-close swipe-handler=".swipe-handler" class="license-popup">
             <f7-page>
                 <f7-navbar>
-                    <div class="swipe-handler"></div>
+                    <div class="swipe-handler" style="z-index: 10"></div>
                     <f7-subnavbar :title="$t('License') "></f7-subnavbar>
                 </f7-navbar>
                 <f7-block strong outline>

src/views/mobile/users/DataManagement.vue

@@ -27,7 +27,7 @@
                   :swipe-to-close="!exportingData" :close-on-escape="!exportingData"
                   :close-by-backdrop-click="!exportingData" :close-by-outside-click="!exportingData"
                   :opened="showExportDataSheet" @sheet:closed="showExportDataSheet = false; exportedData = null;">
-            <div class="swipe-handler"></div>
+            <div class="swipe-handler" style="z-index: 10"></div>
             <f7-page-content class="margin-top no-padding-top">
                 <div class="display-flex padding justify-content-space-between align-items-center">
                     <div style="font-size: 18px"><b>{{ $t('Are you sure you want to export all data to csv file?') }}</b></div>