Improve ui

src/panel/graph_panel/partials/tab_analytics.html

@@ -1,3 +1,4 @@
+<div class="gf-form-group">
   <div class="gf-form">
     <label class="gf-form-label">Select Hastic datasource</label>
     <select class="gf-form-input max-width-15"
@@ -6,7 +7,9 @@
       ng-change="ctrl.onHasticDatasourceChange()"
     />
   </div>
+</div>
 
+<div class="gf-form">
   <div class="gf-form-button-row" ng-if="ctrl.analyticsController.serverStatus === false">
     <h5>Hastic server at "{{ctrl.backendURL}}" is not available</h5>
     <button class="btn btn-inverse" ng-click="ctrl.runBackendConnectivityCheck()">
@@ -214,6 +217,8 @@
         <i class="fa fa-caret-right" ng-hide="ctrl.showHelp"></i>
       </button>
     </div>
+  </div>
+</div>
 
 <div class="gf-form" ng-show="ctrl.showHelp" ng-bind-html="ctrl.analyticsController.helpSectionText"></div>