feat: Add level 8, and swap level 8 with 4

src/level/level4.json

@@ -1,20 +1,16 @@
 {
-  "p": { "x": 272, "y": 255 },
-  "r": 30,
+  "p": { "x": 250, "y": 155, "b": "ew", "d": 100 },
+  "r": 50,
   "s": [
-    { "x": 300, "y": 400, "b": "ew", "d": 100 },
-    { "x": 464, "y": 350, "b": "ew", "d": -200 },
-    { "x": 100, "y": 450, "b": "ew", "d": 100 }
+    { "x": 464, "y": 350, "b": "ew", "d": 100 },
+    { "x": 164, "y": 150, "b": "ew", "d": 100 },
+    { "x": 400, "y": 380 },
+    { "x": 600, "y": 480 }
   ],
-  "b": [
-    { "x": 260, "y": 220 },
-    { "x": 460, "y": 290 },
-    { "x": 460, "y": 322 },
-    { "x": 460, "y": 354 }
-  ],
-  "g": [{ "x": 600, "y": 700 }],
+  "b": [{ "x": 250, "y": 155, "b": "ew", "d": 100 }],
+  "g": [{ "x": 700, "y": 700 }],
   "h": [
-    { "x": 200, "y": 400 },
-    { "x": 478, "y": 270 }
+    { "x": 260, "y": 50 },
+    { "x": 580, "y": 100 }
   ]
 }

src/level/level8.json

@@ -0,0 +1,20 @@
+{
+  "p": { "x": 272, "y": 255 },
+  "r": 30,
+  "s": [
+    { "x": 300, "y": 400, "b": "ew", "d": 100 },
+    { "x": 464, "y": 350, "b": "ew", "d": -200 },
+    { "x": 100, "y": 450, "b": "ew", "d": 100 }
+  ],
+  "b": [
+    { "x": 260, "y": 220 },
+    { "x": 460, "y": 290 },
+    { "x": 460, "y": 322 },
+    { "x": 460, "y": 354 }
+  ],
+  "g": [{ "x": 600, "y": 700 }],
+  "h": [
+    { "x": 200, "y": 400 },
+    { "x": 478, "y": 270 }
+  ]
+}

src/menu.js

@@ -27,7 +27,7 @@ const overlayIds = [
   'near-levels',
   'thanks',
 ];
-const levels = 7;
+const levels = 8;
 
 let hasRemovedDisableOnBonusEls = false;