We replace the lodash templates with arrow-functions and change the
single-argument object into multiple arguments.
Fixes#1810Closes#2006
Change-Type: patch
Changelog-Entry: Replace Lodash templates with arrow-functions.
* feat(GUI): add app to gui folder structure
We add a `lib/gui/app/` folder to help transition to Webpack usage.
Change-Type: patch
Changelog-Entry: Add `lib/gui/app` folder to ease into Webpack usage.