添加 .editorconfig；空格缩进规范化

.editorconfig

@@ -0,0 +1,26 @@
+# EditorConfig is awesome: https://editorconfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+end_of_line = lf
+
+# Unix-style newlines with a newline ending every file
+insert_final_newline = true
+
+# Set default charset
+charset = utf-8
+
+[*.{js,ts}]
+# 4 space indentation
+indent_style = space
+indent_size = 4
+
+# Tab indentation (no size specified)
+[.vscode/**.json]
+indent_style = tab
+
+# 历史原因需要保留 tab 缩进的代码文件
+[src/{test/extension.test.ts,extension.ts}]
+indent_style = tab

CHANGELOG.md

@@ -29,6 +29,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Internal
 
+- Add `.editorconfig` file. (添加 `.editorconfig` 文件)
 - Upgrade plugin dependency versions. (升级插件依赖版本)
 - Modify eslint configuration. (调整 eslint 配置)