Chrome extension for Temporal WebUI to improve iWF experience

e.g. adding new column, showing flow diagram, etc

This can be a compromise of https://github.com/indeedeng/iwf/issues/44

However, this may not a good idea for long term for best user experience (because temporal updating the WebUI will break the extension anytime)

Start by reviewing the Temporal WebUI and the linked iWF issue #44. The issue names no repository files, tests, entry points, or acceptance criteria, so the intended extension scope and definition of done still need to be established.

Written by the indexing model from the issue text.