fix: API Route snippet names (#71)

Author: AnishDe12020

packages/vscode/snippets/next-javascript.json

@@ -64,7 +64,7 @@
     ],
     "description": "JavaScript: Next.js custom document"
   },
-  "napi": {
+  "ngapi": {
     "prefix": "ngapi",
     "body": [
       "const handler = (req, res) => {",

packages/vscode/snippets/next-typescript.json

@@ -116,7 +116,7 @@
     "description": "Typescript: Next.js custom document"
   },
   "ngapit": {
-    "prefix": "napit",
+    "prefix": "ngapit",
     "body": [
       "import type { NextApiRequest, NextApiResponse } from \"next\";",
       "",