hotkeys.js is managed dependency

- This ensures that the version is managed
- This also ensures we are not relying on an external URL for the
JavaScript location which has broken in the past

Closes gh-285

Author: rwinch

package-lock.json

@@ -72,6 +72,7 @@
   "dependencies": {
     "@algolia/client-search": "^4.17.0",
     "@primer/octicons": "^19.8.0",
+    "hotkeys-js": "^4.0.0-beta.6",
     "init": "^0.1.2"
   }
 }

package.json

@@ -0,0 +1 @@
+require('hotkeys-js')

src/js/vendor/hotkeys.bundle.js

@@ -21,7 +21,7 @@
     </div>
 </div>
 
-<script src="https://unpkg.com/hotkeys-js/dist/hotkeys.min.js"></script>
+<script src="{{{uiRootPath}}}/js/vendor/hotkeys.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/algoliasearch-lite.umd.js" integrity="sha256-Lf9DrpGmcRip6OQzbcL6lnvNmoZNSKpyQX5pMlwatWE=" crossorigin="anonymous"></script>
 <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/instantsearch.production.min.js" integrity="sha256-xYsZPDeNjYNTBWLvqD2Lxe98hOxcDgOHyMPfz4tVAbk=" crossorigin="anonymous"></script>
 <script async id="search-script" src="{{{uiRootPath}}}/js/vendor/search.js"{{#if env.ALGOLIA_APP_ID}} data-app-id="{{env.ALGOLIA_APP_ID}}"{{/if}} data-api-key="{{env.ALGOLIA_API_KEY}}" data-index-name="{{env.ALGOLIA_INDEX_NAME}}" data-stylesheet="{{{uiRootPath}}}/css/vendor/search.css" data-page-version="{{{page.version}}}" data-page-generation="{{{page.componentVersion.versionSegment}}}" data-page-component="{{{page.component.name}}}"></script>