FIX: FindDlg: the buttons are not displayed because the height of the FindDlg Form is insufficient after upgrading to LCL2.3 (#626)

src/fFindDlg.lfm

@@ -3,6 +3,7 @@ object frmFindDlg: TfrmFindDlg
   Height = 469
   Top = 176
   Width = 875
+  AutoSize = True
   Caption = 'Find files'
   ClientHeight = 449
   ClientWidth = 875