config: update editor settings to use spaces

- EditorConfig: change indent_style from tab to space with size 2
- VSCode settings: enforce spaces, disable indentation detection
- Ensure consistent space indentation across all editors

Author: yanglbme

.editorconfig

@@ -2,7 +2,8 @@
 root = true
 
 [*]
-indent_style = tab
+indent_style = space
+indent_size = 2
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true

.vscode/settings.json

@@ -1,5 +1,8 @@
 {
   "files.associations": {
     "wrangler.json": "jsonc"
-  }
+  },
+  "editor.insertSpaces": true,
+  "editor.tabSize": 2,
+  "editor.detectIndentation": false
 }