ui: fix 1px overshoot on NavWidget show (#37593)

fix

Author: sshane

system/ui/widgets/nav_widget.py

@@ -149,8 +149,9 @@ def _update_state(self):
       new_y = self._rect.height + DISMISS_PUSH_OFFSET
 
     new_y = round(self._y_pos_filter.update(new_y))
-    if abs(new_y) < 1 and self._y_pos_filter.velocity.x == 0.0:
+    if abs(new_y) < 1 and abs(self._y_pos_filter.velocity.x) < 0.5:
       new_y = self._y_pos_filter.x = 0.0
+      self._y_pos_filter.velocity.x = 0.0
 
       if self._shown_callback is not None:
         self._shown_callback()
@@ -223,6 +224,7 @@ def show_event(self):
     # Start NavWidget off-screen, no matter how tall it is
     self._y_pos_filter.update_alpha(0.1)
     self._y_pos_filter.x = gui_app.height
+    self._y_pos_filter.velocity.x = 0.0
 
     self._nav_bar_y_filter.x = -NAV_BAR_MARGIN - NAV_BAR_HEIGHT
     self._nav_bar_show_time = rl.get_time()