Toggle for default persistence

[JakeIsMeh]

There is currently there is no way to disable the workspace from using previous changes when the page refreshes.

[JakeIsMeh]

Anyways, currently I'm using a hacky workaround before initalizing the workspace:

window.indexedDB.deleteDatabase(`modern-monaco-state(${WORKSPACE_NAME})`);
window.indexedDB.deleteDatabase(`modern-monaco-workspace(${WORKSPACE_NAME})`);

[ije]

i will add an InMemoryFileSystem