feat(webview): implement useLatestURL cookie watcher and startup routing#4

mathiiiiiis wants to merge 2 commits intoNerimity:webviewNerimity/NerimityReactNative:webviewfrom

mathiiiiiis:feature/use-latest-urlmathiiiiiis/NerimityReactNative:feature/use-latest-urlCopy head branch name to clipboard