Show time label on top of ruler

Closes #71 (closed)

sohstationviewer/view/plotting/plotting_widget/plotting_axes.py

@@ -360,7 +360,7 @@ class PlottingAxes:
         self.parent.timestamp_bar_bottom.add_artist(ruler)
         return ruler
 
-    def set_title(self, title, x=-0.15, y=100, v_align='top'):
+    def set_title(self, title, x=-0.15, y=105, v_align='top'):
         """
         Display title of the data set's plotting based on