Adds packages/plugin-sandbox: QuickJS-ng compiled to wasm, running in a
dedicated worker, with a runtime shell inside it that loads a plugin bundle
and answers the same InternalEventPayload events the Node runtime answers.
Plugins are unmodified.
Wires the browser host's template function, authentication, cURL import and
template render commands to it, and relaxes TemplateCallback's Send bound on
wasm32 so the engine's renderer can call back out to a plugin.
The web build bound Cmd/Ctrl +, - and 0 and then did nothing with them, so zoom appeared broken. Those keys are the browser's own page zoom, which scales the whole page and remembers it per site.
Adds an interfaceZoom capability: true on desktop, where the host zooms the webview, false in a browser. When false the app binds nothing and the hotkeys screen drops the three rows it can't configure.
Gregory Schier