Remove CCS viewport letterboxing

scenes/ccs_cases_2/doctor_office.tscn

@@ -270,14 +270,18 @@ grow_vertical = 2
 mouse_filter = 2
 texture = ExtResource("7_computer")
 expand_mode = 1
-stretch_mode = 5
+stretch_mode = 0
 
 [node name="Close" type="Button" parent="ComputerOverlay"]
-layout_mode = 0
-offset_left = 1512.0
+layout_mode = 1
+anchors_preset = 1
+anchor_left = 1.0
+anchor_right = 1.0
+offset_left = -88.0
 offset_top = 20.0
-offset_right = 1576.0
+offset_right = -24.0
 offset_bottom = 84.0
+grow_horizontal = 0
 mouse_default_cursor_shape = 2
 tooltip_text = "Close computer"
 icon = ExtResource("9_close")