fix: update Helia usage and fix tests (#63)

Helia 1.1.x comes with a libp2p instance so remove custom libp2p
creation.  The 101 example still has it so there's still a reference
to link people to.

Author: achingbrain

package.json

@@ -17,15 +17,8 @@
     "last 1 Chrome version"
   ],
   "dependencies": {
-    "@chainsafe/libp2p-noise": "^12.0.0",
-    "@chainsafe/libp2p-yamux": "^4.0.1",
     "@helia/unixfs": "^1.2.1",
-    "@libp2p/bootstrap": "^8.0.0",
-    "@libp2p/websockets": "^6.0.1",
-    "blockstore-core": "^4.1.0",
-    "datastore-core": "^9.1.1",
     "helia": "^1.0.0",
-    "libp2p": "^0.45.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
   },

src/app.js

@@ -1,6 +1,6 @@
 import { unixfs } from '@helia/unixfs'
+import { createHelia } from 'helia'
 import React, { useState, useRef } from 'react'
-import { getHelia } from './get-helia.js'
 
 function App () {
   const [output, setOutput] = useState([])
@@ -36,7 +36,7 @@ function App () {
     if (!helia) {
       showStatus('Creating Helia node...', COLORS.active)
 
-      node = await getHelia()
+      node = await createHelia()
 
       setHelia(node)
     }