Fix TypeError in calendar update by returning y_pos on draw_event error

src/calendar_manager.py

@@ -98,6 +98,7 @@ class CalendarManager:
     
     def draw_event(self, event, y_start=1):
         """Draw a single calendar event on the canvas."""
+        y_pos_at_start = y_start # Store the starting position
         try:
             # Get event details
             summary = event.get('summary', 'No Title')
@@ -136,9 +137,11 @@ class CalendarManager:
                     break
                 self.display_manager.draw_text(line, y=y_pos, color=self.text_color, small_font=True)
                 y_pos += 8 + 2 # Move down for the next line, add 2px spacing
+            return y_pos # Return the final y position if successful
 
         except Exception as e:
             logging.error(f"Error drawing calendar event: {str(e)}", exc_info=True)
+            return y_pos_at_start # Return the original starting position on error
 
     def _wrap_text(self, text, max_width, font):
         """Wrap text to fit within max_width using the provided font."""