Use memoryStorageDriver (#85)

* Use `enableMemoryStorage` and `memoryStorageDriver`

* Try adding square brackets

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Co-authored-by: Michał Krassowski <[email protected]>

Author: agriyakhetarpal

lite/jupyter-lite.json

@@ -7,6 +7,8 @@
     "settingsStorageName": "JupyterEverywhere Storage",
     "exposeAppInBrowser": true,
     "showLoadingIndicator": true,
+    "enableMemoryStorage": true,
+    "contentsStorageDrivers": ["memoryStorageDriver"],
     "settingsOverrides": {
       "@jupyterlab/mainmenu-extension:plugin": {
         "menus": [