Ignore IDE files and remove project-specific configs

Added .idea/* and *.iml to .gitignore to prevent committing IDE-specific files. Deleted existing .idea directory and .iml file from the repository to clean up project configuration files that should not be tracked.

Author: NewAmazingPVP

.gitignore

@@ -26,3 +26,6 @@ target/
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
+
+*.iml
+.idea/*