Add SafeArea to PdfPreview

@@ -254,8 +254,8 @@ class _PdfPreviewState extends State<PdfPreview> {
       final List<String> keys = _pageFormats.keys.toList();
       actions.add(
         DropdownButton<PdfPageFormat>(
-          style: theme.accentTextTheme.button,
-          // dropdownColor: Colors.grey.shade700,
+          // style: theme.accentTextTheme.button,
+          dropdownColor: Colors.grey.shade700,
           icon: Icon(
             Icons.arrow_drop_down,
             color: theme.accentIconTheme.color,
@@ -329,10 +329,12 @@ class _PdfPreviewState extends State<PdfPreview> {
           Material(
             elevation: 4,
             color: theme.primaryColor,
+            child: SafeArea(
               child: Row(
                 mainAxisAlignment: MainAxisAlignment.spaceAround,
                 children: actions,
               ),
+            ),
           )
       ],
     );