feat: support JSX and TSX in edge functions (#161)

* feat: support JSX and TSX in edge functions

* chore: include entrypoints in directories

* chore: changes from review

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

node/finder.ts

@@ -4,13 +4,13 @@ import { basename, extname, join } from 'path'
 import { EdgeFunction } from './edge_function.js'
 import { nonNullable } from './utils/non_nullable.js'
 
-const ALLOWED_EXTENSIONS = new Set(['.js', '.ts'])
+const ALLOWED_EXTENSIONS = new Set(['.js', '.jsx', '.ts', '.tsx'])
 
 const findFunctionInDirectory = async (directory: string): Promise<EdgeFunction | undefined> => {
   const name = basename(directory)
-  const candidatePaths = [`${name}.js`, `index.js`, `${name}.ts`, `index.ts`].map((filename) =>
-    join(directory, filename),
-  )
+  const candidatePaths = [...ALLOWED_EXTENSIONS]
+    .flatMap((extension) => [`${name}${extension}`, `index${extension}`])
+    .map((filename) => join(directory, filename))
 
   let functionPath