chore: simplify .gitignore

.gitignore

@@ -1,45 +1,17 @@
-.gradle
-build/
-!gradle/wrapper/gradle-wrapper.jar
-!**/src/main/**/build/
-!**/src/test/**/build/
-.kotlin
-
-### IntelliJ IDEA ###
-.idea/modules.xml
-.idea/jarRepositories.xml
-.idea/compiler.xml
-.idea/libraries/
-*.iws
-*.iml
-*.ipr
-out/
-!**/src/main/**/out/
-!**/src/test/**/out/
-
-### Eclipse ###
-.apt_generated
-.classpath
-.factorypath
-.project
-.settings
-.springBeans
-.sts4-cache
-bin/
-!**/src/main/**/bin/
-!**/src/test/**/bin/
-
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
-
-### VS Code ###
+#region Visual Studio Code
 .vscode/
+*.code-workspace
+#endregion
 
-### Mac OS ###
-.DS_Store
+#region Java
+bin/
+build/
+run/
+#endregion
 
-*.code-workspace
+#region Gradle
+.gradle/
+
+!gradle-wrapper.jar
+!gradle-wrapper.properties
+#endregion