Add: EditorConfig を追加

.editorconfig

@@ -0,0 +1,14 @@
+# https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.vscode/extensions.json

@@ -1,3 +1,7 @@
 {
-  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode",
+    "EditorConfig.EditorConfig"
+  ]
 }

.vscode/settings.json

@@ -1,11 +1,11 @@
 {
-  "editor.tabSize": 2,
-  "editor.insertSpaces": true,
-  "editor.detectIndentation": false,
   "editor.defaultFormatter": "esbenp.prettier-vscode",
   "editor.formatOnSave": true,
   "editor.codeActionsOnSave": {
     "source.fixAll.eslint": true
   },
-  "eslint.format.enable": false
+  "eslint.format.enable": false,
+  "[plaintext]": {
+    "editor.formatOnSave": false
+  }
 }