The `build.gradle.kts` file should have the Gradle icon on the project overview

Summary

The build.gradle.kts file should have the Gradle icon on the project overview

Steps to reproduce

1. Open a project which uses the Gradle build system with Kotlin build scripts (for example: https://gitlab.com/vilmosnagy/argo-intellij-plugin)
2. Take a look at the build.gradle.kts and the settings.gradle.kts files

What is the expected correct behavior?

1. The same files have the Gradle icon if Groovy-based Gradle scripts are used, see: https://gitlab.com/devbench/uibuilder-idea-plugin

Output of checks

This bug happens on GitLab.com