✨feature: Add prompt export

src/components/SidebarAdd.astro

@@ -23,10 +23,17 @@ const code = `[
   <p class="text-sm mt-2">All fields marked with <span class="text-red-600">*</span> are required.</p>
 
   <h2 class="text-lg font-semibold mt-6 mb-4">Import</h2>
+
   <p class="text-sm">To import prompts from a JSON file, upload a JSON file formatted as below, or download a sample <a class="underline" download href="/import-sample.json">here</a>.</p>
 
   <Code class="bg-gray-700 rounded text-sm p-2 mt-4" code={code} lang="json" wrap />
 
+  <h2 class="text-lg font-semibold mt-6 mb-4">Export</h2>
+
+  <p class="text-sm">To export prompts to a JSON file, select the prompts using the checkboxes, and click the button below.</p>
+
+  <p class="text-sm mt-2">To export all prompts, leave all checkboxes unchecked.</p>
+
   <a href="/" id="home" class="block w-fit bg-green-600 text-white px-4 py-2 mt-4 rounded hover:bg-green-700 transition-colors duration-300">
     Go Back
   </a>