startConversationWithUser should work with the web adapter

[benbrown]

What are you trying to achieve or the steps to reproduce?

The startConversationWithUser method should be implemented for the web adapter.

It is currently possible to achieve the same thing by doing:

let bot = await controller.spawn();
await bot.changeContext(some_reference);
await bot.say(...)

I believe it should be possible to construct a reference appropriately to allow this to happen without a previously existing reference.

What was the result you received?

Developers should be able to proactively message any user currently connected to the websocket by using just a user id.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.