feat(design): improve design of preferences about, app logs

www/views/preferencesAbout.html

@@ -1,11 +1,11 @@
-<ion-view>
+<ion-view class="settings">
   <ion-nav-bar class="bar-royal">
     <ion-nav-title>{{title}}</ion-nav-title>
     <ion-nav-back-button>
     </ion-nav-back-button>
   </ion-nav-bar>
   <ion-content>
-    <div class="list">
+    <div class="list settings-list">
       <div class="item item-divider" translate>
         Release information
       </div>

www/views/preferencesLogs.html

@@ -1,19 +1,21 @@
-<ion-view>
+<ion-view class="settings">
   <ion-nav-bar class="bar-royal">
     <ion-nav-title>{{'Session Log' | translate}}</ion-nav-title>
     <ion-nav-back-button>
     </ion-nav-back-button>
   </ion-nav-bar>
   <ion-content>
-    <button class="button button-standard button-primary" style="margin-top: 1rem" copy-to-clipboard="prepare()">
-      <i class="icon ion-clipboard"></i>
-      <span translate>Copy to clipboard</span>
-    </button>
-    <button class="button button-standard button-secondary" ng-show="isCordova" ng-click="sendLogs()">
-      <i class="icon ion-ios-email-outline"></i>
-      <span translate>Send by email</span>
-    </button>
-    <div class="card">
+    <div class="settings-button-group">
+      <button class="button button-standard button-primary" style="margin-top: 1rem" copy-to-clipboard="prepare()">
+        <i class="icon ion-clipboard"></i>
+        <span translate>Copy to clipboard</span>
+      </button>
+      <button class="button button-standard button-secondary" ng-show="isCordova" ng-click="sendLogs()">
+        <i class="icon ion-ios-email-outline"></i>
+        <span translate>Send by email</span>
+      </button>
+    </div>
+    <div class="list">
       <div class="item item-text-wrap">
         <ul>
           <li ng-repeat="l in logs">