first time worked

addCheckboxes.js

@@ -0,0 +1,21 @@
+function addCheckboxes() {
+  const conversations = document.querySelectorAll(
+    '.flex.flex-col.gap-2.pb-2.text-gray-100.text-sm > .flex.py-3.px-3.items-center.gap-3.relative.rounded-md'
+  );
+
+  conversations.forEach((conversation, index) => {
+    const existingCheckbox = conversation.querySelector('.conversation-checkbox');
+    if (!existingCheckbox) {
+      const checkbox = document.createElement('input');
+      checkbox.type = 'checkbox';
+      checkbox.className = 'conversation-checkbox';
+      checkbox.dataset.index = index; // 设置 data-index 属性
+      checkbox.addEventListener('click', (e) => {
+        e.stopPropagation();
+      });
+      conversation.insertBefore(checkbox, conversation.firstChild);
+    }
+  });
+}
+
+addCheckboxes();