feat: Added theme context menu (#98)

* Added headless-ui as dependency to allow for easier integration of context menus.
* Added generic context menu component.
* Added theme context menus to theme summary and detail cards.
* Added missing pages to /dev and adjusted "NEW" tags.
* Improved stability of local playlist and watch history.

package.json

@@ -15,6 +15,7 @@
     "@fortawesome/react-fontawesome": "^0.1.14",
     "@graphql-tools/merge": "^8.2.1",
     "@graphql-tools/schema": "^8.2.0",
+    "@headlessui/react": "^1.4.2",
     "@next/bundle-analyzer": "^12.0.3",
     "@reach/listbox": "^0.16.1",
     "common-tags": "^1.8.0",