Editor Tabs

The flow editor now has tabs to open multiple chains/agents. This should help user's manage context while working on nested chains simultaneously.

https://github.com/kreneskyp/ix/assets/68635/8927b653-011e-45da-b9ac-49af7718124d

Misc:

• Component search popup now supports SVGIcon and other minor styling fixes. #385
• Run log now renders component type info for components newly added to the flow #384