Fix typo in getstaticprops ts snippet (#69)

* fix(nextjs-ts): fix a typo in get static props type

* docs(readme): fix a typo in nextjs ts getstaticprops

Author: AnishDe12020

packages/vscode/README.md

@@ -209,7 +209,7 @@ const handleCallback = useCallback(() => {}, []);
 2. `ngspt` (Next.js get static props)
 
    ```tsx
-   export const getStaticProps: getStaticProps = async (context) => {
+   export const getStaticProps: GetStaticProps = async (context) => {
      return { props: {} };
    };
    ```

packages/vscode/snippets/next-typescript.json

@@ -14,7 +14,7 @@
   "ngspt": {
     "prefix": "ngsp",
     "body": [
-      "export const getStaticProps: getStaticProps = async context => {",
+      "export const getStaticProps: GetStaticProps = async context => {",
       "  return {",
       "    props: {},",
       "  };",