sebastian/threema-web: Threema-web, clone of the official github repo from 12.2020 @ 7ceafdde08043fbd8814b45b82b5e9b22bc3f0d2

Danilo Bargen 6d8fa31048 Build script: Replace `exec` with `spawn`		7 lat temu
..
build-package.js	6d8fa31048 Build script: Replace `exec` with `spawn`	7 lat temu
package.sh	69acfccfe9 Replace npm-shrinkwrap.json with package-lock.json (#298)	8 lat temu