Bump darcula from 2018.2 to 2021.7
Bump darcula from 2018.2 to 2021.7

Bumps [darcula](https://github.com/bulenkov/Darcula) from 2018.2 to 2021.7.
- [Release notes](https://github.com/bulenkov/Darcula/releases)
- [Commits](https://github.com/bulenkov/Darcula/commits)

---
updated-dependencies:
- dependency-name: org.freeplane.bulenkov:darcula
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Idrinth/WARAddonClient,Idrinth/WARAddonClient