Update .gitignore

.gitignore

+# Ignore the following files
+.vscode
+*~
+*.[oa]
+*.diff
+*.kate-swp
+*.kdev4
+.kdev_include_paths
+*.kdevelop.pcs
+*.moc
+*.moc.cpp
+*.orig
+*.user
+.*.swp
+.swp.*
+Doxyfile
+Makefile
+avail
+random_seed
+/build*/
+CMakeLists.txt.user*
+.clang-format
 /compile_commands.json
 .clangd
-.cache
 .idea
 /cmake-build*
+.cache