Fix for "open in colab" opens the same zip after updates (#295)

* Check if hyperlink is causing the problem

- Perhaps the reactivity of vue is the problem and the hyperlink is not being updated

* Change unique identifier each time the function is called

* Revert back changes in NavColab.vue

* Added combined hash of the code for formation of uuid

* Fix lint

* Using the uuidv5 URL namespace

* Remove unwanted comments

* Remove rogue extra line

Author: theory-in-progress

functions/colab.js

@@ -2,11 +2,10 @@
 // `external_node_modules` of [functions] in netlify.toml
 // They are required for this function to run
 
-import { v4 as uuidv4 } from 'uuid'
+import { v5 as uuidv5 } from 'uuid'
 import JSZip from 'jszip'
 import { pushToGitHub } from './utils'
 
-const nbUid = uuidv4()
 const repoOwner = process.env.VUE_APP_GH_USER
 const repo = process.env.VUE_APP_GH_REPO
 
@@ -17,6 +16,7 @@ exports.handler = async function (event, _) {
   const data = JSON.parse(event.body)
   const zip = new JSZip()
   const code = data.code
+  let hash = ''
   const template = `ignite-${data.template}`
   const nbName = `${template}.ipynb`
 
@@ -25,8 +25,10 @@ exports.handler = async function (event, _) {
   // generate a base64 format for pushing to GitHub
   // with Octokit.
   for (const filename in code) {
+    hash += code[filename]
     zip.file(filename, code[filename])
   }
+  const nbUid = uuidv5(hash, uuidv5.URL)
   const content = await zip.generateAsync({ type: 'base64' })
   const zipRes = await pushToGitHub(
     content,