Use more complete gitignore

Author: electerious

.gitignore

@@ -1,2 +1,27 @@
-node_modules/
-.DS_Store
+# Temporary files
+**/.DS_Store
+**/.AppleDouble
+**/.LSOverride
+**/.idea/
+**/Icon\r\r
+
+# External disk files
+**/.Spotlight-V100
+**/.Trashes
+
+# AFP share files
+**/.AppleDB
+**/.AppleDesktop
+**/.apdisk
+**/Network Trash Folder
+**/Temporary Items
+
+# Test artifacts
+**/coverage
+
+# Package Managers
+**/npm-debug.log
+**/yarn-debug.log
+**/yarn-error.log
+**/node_modules
+**/yarn.lock