Update vendor and unpkg code in online.html

[hildjj]

Version updates for everything. Perhaps switch jsDump to node-inspect-extracted

[Mingun]

I think, we should turn vendor dependencies into ordinary npm dependencies and build browser bundle from them. For example, we could update CodeMirror to version 6, there even is an example, how to bundle it with rollup.

[hildjj]

That makes some sense to me. I do want to make sure we're using the peggy build that everyone else can get, not bundling it up. I use that as a sanity check to make sure the minified build is working.