Hmm likely not,
sketch-module-web-view is targeted at mimicking the BrowserWindow API from electron.
A Sketch module for creating a complex UI with a webview. The API is mimicking the BrowserWindow API of Electron.
BrowserWindow seems to be aimed for creating new windows and controlling content inside them. If you are wanting to inject UI Into Sketch I'd recommend using cocoascript or even better loading your own Framework. I'd recommend sticking to floating windows for your plugin if you aren't as familiar with MacOS development as its much more streamlined.