refactor: migrate from shikiji to shiki v1 (#2591)

composables/tiptap/shiki-parser.ts

@@ -0,0 +1,22 @@
+import { type Parser, createParser } from 'prosemirror-highlight/shiki'
+import type { BuiltinLanguage } from 'shiki'
+
+let parser: Parser | undefined
+
+export const shikiParser: Parser = (options) => {
+  const lang = options.language ?? 'text'
+
+  // Register the language if it's not yet registered
+  const { highlighter, promise } = useHighlighter(lang as BuiltinLanguage)
+
+  // If the highlighter or the language is not available, return a promise that
+  // will resolve when it's ready. When the promise resolves, the editor will
+  // re-parse the code block.
+  if (!highlighter)
+    return promise ?? []
+
+  if (!parser)
+    parser = createParser(highlighter)
+
+  return parser(options)
+}