ci: add js linting

.editorconfig

@@ -0,0 +1,8 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+charset = utf-8

.github/workflows/js.yml

@@ -0,0 +1,27 @@
+name: JavaScript
+on:
+    push:
+        paths:
+            - '**/*.js'
+            - '**/*.ts'
+        branches:
+            - main
+    pull_request:
+        paths:
+            - '**/*.js'
+            - '**/*.ts'
+
+jobs:
+    run:
+        runs-on: ubuntu-latest
+        steps:
+            -   name: Checkout repository
+                uses: actions/checkout@v4
+
+            -   name: Setup Biome CLI
+                uses: biomejs/setup-biome@v2
+                with:
+                    version: latest
+
+            -   name: Run Biome
+                run: biome ci .

biome.json

@@ -0,0 +1,19 @@
+{
+    "$schema": "https://biomejs.dev/schemas/1.5.3/schema.json",
+    "files": {
+        "ignore": ["src/Resources/public", "src/Resources/app/storefront/dist"]
+    },
+    "javascript": {
+        "formatter": {
+            "indentStyle": "space",
+            "indentWidth": 4,
+            "quoteStyle": "single"
+        }
+    },
+    "json": {
+        "formatter": {
+            "indentStyle": "space",
+            "indentWidth": 4
+        }
+    }
+}

src/Resources/app/administration/src/module/sw-mail-template/component/sw-mail-template-list/index.js

@@ -6,16 +6,19 @@ Shopware.Component.override('sw-mail-template-list', {
         getListColumns() {
             const columns = this.$super('getListColumns');
 
-            columns.unshift({
-                property: 'froshTemplateMail',
-                label: 'sw-mail-template.list.columnTemplateMail',
-                allowResize: true,
-            }, {
-                property: 'technicalName',
-                label: 'sw-mail-template.list.columnTechnicalName',
-                allowResize: true,
-                visible: false,
-            });
+            columns.unshift(
+                {
+                    property: 'froshTemplateMail',
+                    label: 'sw-mail-template.list.columnTemplateMail',
+                    allowResize: true,
+                },
+                {
+                    property: 'technicalName',
+                    label: 'sw-mail-template.list.columnTechnicalName',
+                    allowResize: true,
+                    visible: false,
+                },
+            );
 
             return columns;
         },