Fix incorrect react type package

Author: leeyi45

src/bundles/pix_n_flix/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "devDependencies": {
     "@sourceacademy/modules-buildtools": "workspace:^",
-    "@types/react": "^19",
+    "@types/react": "^18.3.1",
     "@vitest/browser": "^3.2.3",
     "playwright": "^1.54.1",
     "react": "^18.3.1",

yarn.lock

@@ -3427,7 +3427,7 @@ __metadata:
   resolution: "@sourceacademy/bundle-pix_n_flix@workspace:src/bundles/pix_n_flix"
   dependencies:
     "@sourceacademy/modules-buildtools": "workspace:^"
-    "@types/react": "npm:^19"
+    "@types/react": "npm:^18.3.1"
     "@vitest/browser": "npm:^3.2.3"
     playwright: "npm:^1.54.1"
     react: "npm:^18.3.1"
@@ -4837,15 +4837,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react@npm:^19":
-  version: 19.1.13
-  resolution: "@types/react@npm:19.1.13"
-  dependencies:
-    csstype: "npm:^3.0.2"
-  checksum: 10c0/75e35b54883f5ed07d3b5cb16a4711b6dbb7ec6b74301bcb9bfa697c9d9fff022ec508e1719e7b2c69e2e8b042faac1125be7717b5e5e084f816a2c88e136920
-  languageName: node
-  linkType: hard
-
 "@types/stats.js@npm:*":
   version: 0.17.4
   resolution: "@types/stats.js@npm:0.17.4"