feat:openai (#4)

* chore: Add packages for using vercel edge fns
* feat: basic implementation of openai
* feat: style openai-related components
Note the git history git a bit borked, so the commits in this PR aren't in order, and some are duplicated.

.gitignore

@@ -27,3 +27,6 @@ coverage
 *.njsproj
 *.sln
 *.sw?
+
+# Vercel
+.vercel/*

api/generate.js

@@ -0,0 +1,34 @@
+import { OpenAIStream } from '../utils/OpenAIStream'
+
+export const config = {
+  runtime: 'edge',
+}
+
+const handler = async (req) => {
+  const { bio, jobDescription } = await req.json()
+
+  const prompt = `
+    Given the current resume profile, ${bio}, generate an improved resume 
+    profile based on the job description,
+    ${jobDescription}. If the resume profile mentions fewer years of experience than the 
+    job description asks for, then only use the number of years of experience from the resume profile.
+  `
+
+  const payload = {
+    model: 'text-davinci-003',
+    prompt,
+    temperature: 0.7,
+    top_p: 1,
+    frequency_penalty: 0,
+    presence_penalty: 0,
+    max_tokens: 200,
+    stream: true,
+    n: 1,
+  }
+
+  const stream = await OpenAIStream(payload)
+
+  return new Response(stream)
+}
+
+export default handler