feat: display bot console.logs on the UI

[yurijmikhalevich]

Goal: let users view their bot logs on the UI for debugging purposes

Proposal:

• overwrite console.log|warn|error|etc methods in the isolate environment and make them write to our own variables
• read these variables after every bot step and send them to the UI with the state (for MVP; at some point we may consider a websocket connection to send the logs, we probably shouldn't do it in this PR to keep things simple)

Alternative to the above ⬆️:

• Read isolate's stdout – not sure how straightforward this would be