Allow me to enter the page number manually in URL

When I click a page number the url changes to `https://registry.comfy.org/?nodes_index%5Bpage%5D=5` but when I enter the page number manually I'm just sent back to the first page instead.

Start at the pagination controls and the handling of the `nodes_index[page]` URL parameter. Reproduce the issue by editing the URL manually, then verify that the requested page loads and that clicking page links continues to update the URL and displayed results correctly.

Written by the indexing model from the issue text.