refs #5406 the loading message should be still centered in widgets

plugins/Dashboard/stylesheets/dashboard.less

@@ -206,16 +206,17 @@
 
 .widgetLoading {
   cursor: wait;
+  text-align: center;
 }
 
 .widgetLoading, .widgetLoadingError, .dimensionLoadingError {
   padding: 10px;
-  text-align: left;
   font-size: 10pt;
 }
 
 .widgetLoadingError, .dimensionLoadingError {
   color: @theme-color-brand;
+  text-align: left;
 }
 
 #closeMenuIcon {
@@ -541,4 +542,4 @@ div.widgetpreview-preview {
   .button#close,.button#maximise {
     display:none;
   }
-}
\ No newline at end of file
+}