Revert "remove IntelliJ atlassian config #3"

This reverts commit f8c9ad2a4698324563bcdbebbb230509b654c7d7.
Revert "remove IntelliJ config (.idea)"
Squashed commits:
[2ac24f8] Revert "add gradle config"

This reverts commit f163b127e2f4c90c2c3424a609c0c4ffe0699cd6.