The on-screen keyboard layouts and AngularJS templates were previously
part of the Java webapp build, but are now part of the NPM/Webpack
build. Those files were incorrectly left out of the Webpack config,
causing the on-screen keyboard and automatic display resize to fail.
Display of the on-screen keyboard fails without these files as it relies
on loading the on-screen keyboard layouts dynamically via HTTP. Handling
of automatic display resize fails because this relies on a hidden
<object> element containing a blank HTML document, with that document
served statically over HTTP.
