fix(taskbar): correct step comparison for width and opacity updates

Updated the condition in the update_properties function to ensure that width and opacity are incremented when the current step is less than or equal to the frames per second (fps). This change prevents the final frame from being skipped, ensuring smoother visual transitions in the taskbar widget.

src/core/widgets/yasb/taskbar.py

@@ -309,7 +309,7 @@ def _animate_icon(self, icon_label, start_width=None, end_width=None,fps = 60, d
         opacity_effect.setOpacity(self._current_opacity)
 
         def update_properties():
-            if self._current_step < fps:
+            if self._current_step <= fps:
                 self._current_width += width_increment
                 self._current_opacity += opacity_increment
                 icon_label.setFixedWidth(int(self._current_width))