feat(vercel): single entrypoint (#424)

Co-authored-by: Bjorn Lu <bjornlu.dev@gmail.com>
Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

Author: 3 people

.changeset/fast-singers-design.md

@@ -0,0 +1,16 @@
+---
+'@astrojs/vercel': minor
+---
+
+Deprecates the entrypoints `@astrojs/vercel/serverless` and `@astrojs/vercel/static`.  These will continue to work but are no longer documented and will be removed in a future version. We recommend updating to the `@astrojs/vercel` entrypoint as soon as you are able:
+
+```diff
+-import vercel from "@astrojs/vercel/static"
++import vercel from "@astrojs/vercel"
+```
+
+
+```diff
+-import vercel from "@astrojs/vercel/serverless"
++import vercel from "@astrojs/vercel"
+```

packages/vercel/package.json

@@ -14,9 +14,8 @@
   "bugs": "https://github.com/withastro/adapters/issues",
   "homepage": "https://docs.astro.build/en/guides/integrations-guide/vercel/",
   "exports": {
-    ".": {
-      "types": "./types.d.ts"
-    },
+    ".": "./dist/index.js",
+    "./entrypoint": "./dist/serverless/entrypoint.js",
     "./serverless": "./dist/serverless/adapter.js",
     "./serverless/entrypoint": "./dist/serverless/entrypoint.js",
     "./static": "./dist/static/adapter.js",

packages/vercel/src/image/shared.ts

@@ -18,7 +18,7 @@ export type DevImageService = 'sharp' | (string & {});
 // https://vercel.com/docs/build-output-api/v3/configuration#images
 type ImageFormat = 'image/avif' | 'image/webp';
 
-type RemotePattern = {
+export type RemotePattern = {
 	protocol?: 'http' | 'https';
 	hostname: string;
 	port?: string;