Have a Sidebar webview for easier access and better UI!

[sghsri]

Recently, VScode pushed up the functionality to have [sidebar webviews] (microsoft/vscode#46585).

This opens a ton of possibilities for making the extension way more user friendly and intuitive as we are now able to have custom UIs and actions in the sidebar. I imagine the sidebar can be used to specify the request headers, URLs, and more and the actual request response could show up in the normal editor panel! There's definitely a ton of space in the sidebar to implement an amazing experience:

This would also greatly reduce some of the UX roughness of having to open a new .HTTP file.

[tazim404]

But how to do it using Javascript. Any idea?