Added missing stackblitz scripts

Author: mattpocock

package.json

@@ -39,7 +39,21 @@
     "e-26": "npm run exercise -- 26",
     "s-26": "npm run solution -- 26",
     "e-28": "npm run exercise -- 28",
-    "s-28": "npm run solution -- 28"
+    "s-28": "npm run solution -- 28",
+    "e-12": "npm run exercise -- 12",
+    "s-12": "npm run solution -- 12",
+    "e-14": "npm run exercise -- 14",
+    "s-14": "npm run solution -- 14",
+    "e-32": "npm run exercise -- 32",
+    "s-32": "npm run solution -- 32",
+    "e-33": "npm run exercise -- 33",
+    "s-33": "npm run solution -- 33",
+    "e-34": "npm run exercise -- 34",
+    "s-34": "npm run solution -- 34",
+    "e-35": "npm run exercise -- 35",
+    "s-35": "npm run solution -- 35",
+    "e-39": "npm run exercise -- 39",
+    "s-39": "npm run solution -- 39"
   },
   "dependencies": {
     "@types/express": "^4.17.13",
@@ -50,4 +64,4 @@
     "react-dom": "^18.2.0",
     "zod": "^3.17.10"
   }
-}
+}