pack: add .editorconfig and use tab instead of space

tsconfig.node.json

@@ -1,12 +1,12 @@
 {
-  "compilerOptions": {
-    "target": "esnext",
-    "module": "esnext",
-    "jsx": "preserve",
-    "moduleResolution": "node",
-    "composite": true,
-    "resolveJsonModule": true,
-    "allowSyntheticDefaultImports": true
-  },
-  "include": ["package.json", "electron"]
+	"compilerOptions": {
+		"target": "esnext",
+		"module": "esnext",
+		"jsx": "preserve",
+		"moduleResolution": "node",
+		"composite": true,
+		"resolveJsonModule": true,
+		"allowSyntheticDefaultImports": true
+	},
+	"include": ["package.json"]
 }