Miscellaneous cleanup

.editorconfig

@@ -1,12 +1,16 @@
 root = true
 
 [*]
+charset = utf-8
 end_of_line = lf
 insert_final_newline = true
+trim_trailing_whitespace = true
 
-[*.js]
+[*.{js,mjs,cjs,ts}]
 indent_style = space
 indent_size = 2
+max_line_length = 140
+quote_type = single
 
 [*.py]
 indent_style = space

eslint.config.mjs

@@ -3,10 +3,10 @@ import ts from 'typescript-eslint';
 
 import jsoncParser from 'jsonc-eslint-parser';
 
-import prettierPlugin from 'eslint-plugin-prettier';
 import importPlugin from 'eslint-plugin-import';
 
-import prettierConfig from 'eslint-config-prettier';
+/* includes the plugin and enables the rules */
+import prettierRecommendedConfig from 'eslint-plugin-prettier/recommended';
 
 import globals from 'globals';
 
@@ -40,25 +40,33 @@ export default ts.config(
   js.configs.recommended,
   ...ts.configs.strictTypeChecked,
   ...airbnbCompat,
-  prettierConfig,
+  prettierRecommendedConfig,
   {
     /* all JS/TS files */
     files: ['**/*.{js,mjs,cjs,ts}'],
+    linterOptions: {
+      /* disable for now */
+      // reportUnusedDisableDirectives: 'warn',
+    },
     plugins: {
-      prettier: prettierPlugin,
       import: importPlugin,
     },
     rules: {
-      'prettier/prettier': ['error'],
+      'prettier/prettier': [
+        'error',
+        {
+          trailingComma: 'all',
+        },
+      ],
       /* allow names that start with _ to be unused */
       '@typescript-eslint/no-unused-vars': [
         'error',
         {
           args: 'all',
           argsIgnorePattern: '^_',
           caughtErrors: 'all',
-          caughtErrorsIgnorePattern: '^_',
           destructuredArrayIgnorePattern: '^_',
+          /* varsIgnorePattern affects catch as well */
           varsIgnorePattern: '^_',
         },
       ],
@@ -115,7 +123,7 @@ export default ts.config(
     },
   },
   {
-    files: ['services/**/*.{js,ts}', 'tools/*.js', 'eslint.config.{js,cjs,mjs}', 'webpack.config.js'],
+    files: ['services/**/*.{js,ts}', 'tools/*.js', 'eslint.config.{js,mjs,cjs}', 'webpack.config.js'],
     /* all of these use node */
     languageOptions: {
       globals: {
@@ -140,13 +148,18 @@ export default ts.config(
   },
   {
     files: ['tools/*.js'],
+    languageOptions: {
+      /* these scripts run during build, so they can use recent Node.js */
+      ecmaVersion: 'latest',
+      sourceType: 'script',
+    },
     rules: {
       /* not sure how to tell it these aren't modules */
       '@typescript-eslint/no-var-requires': 'off',
     },
   },
   {
-    files: ['*.config.{js,cjs,mjs}'],
+    files: ['*.config.{js,mjs,cjs}'],
     rules: {
       /* obviously we need dev dependencies */
       'import/no-extraneous-dependencies': [
@@ -159,7 +172,7 @@ export default ts.config(
     },
   },
   {
-    files: ['eslint.config.{js,cjs,mjs}'],
+    files: ['eslint.config.{js,mjs,cjs}'],
     rules: {
       /* necessary for flat config */
       'import/no-default-export': 'off',
@@ -171,4 +184,11 @@ export default ts.config(
       '@typescript-eslint/no-var-requires': 'off',
     },
   },
+  {
+    files: ['babel.config.json', 'tsconfig.json'],
+    rules: {
+      /* has various issues (e.g., forcing arrays/objects onto a single line) */
+      'prettier/prettier': 'off',
+    },
+  },
 );

frontend/App.js

@@ -1,13 +1,13 @@
 /**
-	Define your enyo/Application kind in this file.
+  Define your enyo/Application kind in this file.
 */
 
 var
-	kind = require('enyo/kind'),
-	Application = require('enyo/Application'),
-	MainView = require('./views/MainView');
+  kind = require('enyo/kind'),
+  Application = require('enyo/Application'),
+  MainView = require('./views/MainView');
 
 module.exports = kind({
-	kind: Application,
-	view: MainView
+  kind: Application,
+  view: MainView
 });

frontend/index.js

@@ -1,7 +1,7 @@
 /**
-	Instantiate your enyo/Application kind in this file.  Note, application
-	rendering should be deferred until the DOM is ready by wrapping it in a
-	call to ready().
+  Instantiate your enyo/Application kind in this file.  Note, application
+  rendering should be deferred until the DOM is ready by wrapping it in a
+  call to ready().
 */
 
 var