pack: add .editorconfig and use tab instead of space

.eslintrc.json

@@ -1,31 +1,31 @@
 {
-  "root": true,
-  "parser": "vue-eslint-parser",
-  "parserOptions": {
-    "parser": "@typescript-eslint/parser",
-    "sourceType": "module",
-    "ecmaVersion": 2022,
-    "ecmaFeatures": {
-      "jsx": true
-    }
-  },
-  "env": {
-    "node": true,
-    "es6": true
-  },
-  "extends": ["standard", "plugin:vue/vue3-recommended", "prettier"],
-  "globals": {
-    "__static": true
-  },
-  "plugins": ["vue"],
-  "rules": {
-    "arrow-parens": 0,
-    "generator-star-spacing": 0,
-    "no-case-declarations": 0,
-    "array-callback-return": 0,
-    "no-trailing-spaces": 1,
-    "no-control-regex": 0,
-    "no-useless-constructor": 0,
-    "node/no-deprecated-api": 0
-  }
+	"root": true,
+	"parser": "vue-eslint-parser",
+	"parserOptions": {
+		"parser": "@typescript-eslint/parser",
+		"sourceType": "module",
+		"ecmaVersion": 2022,
+		"ecmaFeatures": {
+			"jsx": true
+		}
+	},
+	"env": {
+		"node": true,
+		"es6": true
+	},
+	"extends": ["standard", "plugin:vue/vue3-recommended", "prettier"],
+	"globals": {
+		"__static": true
+	},
+	"plugins": ["vue"],
+	"rules": {
+		"arrow-parens": 0,
+		"generator-star-spacing": 0,
+		"no-case-declarations": 0,
+		"array-callback-return": 0,
+		"no-trailing-spaces": 1,
+		"no-control-regex": 0,
+		"no-useless-constructor": 0,
+		"node/no-deprecated-api": 0
+	}
 }