feat: Live Demo

Here are some cryptic notes to self, maybe they are good enough that you can make sense of them :)

1-click demos. I imagine having a number of short and complete bot codes on one page, and at the very top there's a table with three columns: name (includes link to anchor on the page) a RUN button to start it, and a DEPLOY button that puts the bot on Deno Deploy. Requires a text field, too. Token is obviously never sent, and this must be explained. Cached in localstore of the browser so it persists across visits. It is worth investigating if the token should be shown on other pages, too, in order to improve the copy-pastability of example bot code. Investigate integration between the example bots here, and those in the repo. Should unify the two current sections Live Browser Demo and Example Bots on the page, having two entries here does not make sense and it never did.