fix: restore copy functionality for confirm modal code snippets

Store code snippets as JS variables in components.js and reference them
in the template. This avoids multi-line template literals in HTML
attributes while still providing copy functionality.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/admin/js/components.js

@@ -435,6 +435,34 @@ function adminComponents() {
         showDynamicConfirmDemo: false,
         dynamicItemName: '',
 
+        // Code snippets for confirm modal macros
+        codeSnippets: {
+            confirmModal: `{% from 'shared/macros/modals.html' import confirm_modal %}
+
+{{ confirm_modal(
+    'deleteConfirm',
+    'Delete Item',
+    'Are you sure you want to delete this item?',
+    'deleteItem()',
+    'showDeleteModal',
+    'Delete',
+    'Cancel',
+    'danger'
+) }}`,
+            confirmModalDynamic: `{% from 'shared/macros/modals.html' import confirm_modal_dynamic %}
+
+{{ confirm_modal_dynamic(
+    'removePlatformModal',
+    'Remove Platform',
+    "'Are you sure you want to remove \\\"' + (item?.name || '') + '\\\" ?'",
+    'confirmRemove()',
+    'showConfirmModal',
+    'Remove',
+    'Cancel',
+    'warning'
+) }}`
+        },
+
         // Example log data for demo
         showErrorLogDemo() {
             this.exampleLog = {