Fix issue #1905, item popover with commentId (#1911)

* Fix issue #1905, item popover with commentId

* Fix issue #1924, require nostr prefixes start with slash

* revert hacks and unrelated changes, use commentId in rehype

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Co-authored-by: Keyan <34140557+huumn@users.noreply.github.com>
Co-authored-by: k00b <k00b@stacker.news>

Author: Scroogey-SN

lib/rehype-sn.js

@@ -59,10 +59,10 @@ export default function rehypeSN (options = {}) {
             if (node.properties.href.includes('#itemfn-')) {
               node.tagName = 'footnote'
             } else {
-              const { itemId, linkText } = parseInternalLinks(node.properties.href)
-              if (itemId) {
+              const { itemId, commentId, linkText } = parseInternalLinks(node.properties.href)
+              if (itemId || commentId) {
                 node.tagName = 'item'
-                node.properties.id = itemId
+                node.properties.id = commentId || itemId
                 if (node.properties.href === toString(node)) {
                   node.children[0].value = linkText
                 }