Build mobile Android/iOS assets in CI for artifact usage in downstream Android/iOS builds
Fix https://gitlab.com/gitlab-org/gitter/webapp/issues/2009
Related to the downstream builds,
- Android build: https://gitlab.com/gitlab-org/gitter/gitter-android-app/merge_requests/5
- iOS build: todo
Previous MR about mobile asset builds, https://gitlab.com/gitlab-org/gitter/webapp/merge_requests/1222
cc @jlenny
Closes #2009 (closed)
Edited by Eric Eastwood