fix: integrate localization for table of contents title

src/pages/table-of-contents.html

@@ -184,7 +184,6 @@
             <input
               type="text"
               id="toc-title"
-              value="Table of Contents"
               class="w-full px-4 py-2 bg-gray-800 border border-gray-600 rounded-lg text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
               placeholder="Table of Contents"
               data-i18n-placeholder="tools:tableOfContents.name"