Close the 0.9.3 UI polish milestone

Add deterministic captures 14-21 for the remaining screen-design states, fix the panel/button layout issues they exposed, and record 21/21 compare and judge results. Bump the source to 0.9.3 and move the completed milestone to DONE.md.

src/game/ui/shift_review.gd

@@ -36,11 +36,14 @@ func _init() -> void:
 		dim.set_anchors_preset(Control.PRESET_FULL_RECT)
 		root.add_child(dim)
 
+	var center_host := CenterContainer.new()
+	center_host.set_anchors_preset(Control.PRESET_FULL_RECT)
+	root.add_child(center_host)
 	var center := VBoxContainer.new()
-	center.set_anchors_preset(Control.PRESET_CENTER)
+	center.custom_minimum_size = Vector2(760, 0)
 	center.alignment = BoxContainer.ALIGNMENT_CENTER
-	center.add_theme_constant_override("separation", 12)
-	root.add_child(center)
+	center.add_theme_constant_override("separation", 8)
+	center_host.add_child(center)
 
 	var title := Label.new()
 	title.text = Strings.lookup("review.title")
@@ -92,7 +95,7 @@ func _init() -> void:
 	center.add_child(_quit_button)
 
 func _style_review_button(button: Button) -> void:
-	button.custom_minimum_size = Vector2(300, 52)
+	button.custom_minimum_size = Vector2(300, 46)
 	UiStyles.apply_button(button, 22)
 
 func show_review(review: Dictionary, scenario: Resource, history: Array = [],