make camera 1/4 size instead of 1/6

update World to match

GitOrigin-RevId: 0bcfc25090

Jumpy.Shared/Camera.cs

@@ -5,7 +5,7 @@ using System;
 // https://gamasutra.com/blogs/ItayKeren/20150511/243083/Scroll_Back_The_Theory_and_Practice_of_Cameras_in_SideScrollers.php
 namespace Jumpy {
   class Camera {
-    private Rectangle bbox = new Rectangle(0, 0, 1920 / 6, 1080 / 6);
+    private Rectangle bbox = new Rectangle(0, 0, 1920 / 4, 1080 / 4);
 
     public int Width { get => bbox.Width; }
     public int Height { get => bbox.Height; }

Jumpy.Shared/World.cs

@@ -93,6 +93,11 @@ namespace Jumpy {
     public int Height { get; }
 
     string[] worldDesc = new string[] {
+"                                                                                                                                                                                                                  ",
+"                                                                                                                                                                                                                  ",
+"                                                                                                                                                                                                                  ",
+"                                                                                                                                                                                                                  ",
+"                                                                                                                                                                                                                  ",
 "                                                                                                                                                                                                     X            ",
 "                                                                                                                                                                                                     .            ",
 "                     X                                                         <======>   <==X              X           <=>    <XX>                                                        XX        .            ",