feat: include tag hierarchies in tag listing, sort tag listing

quartz/components/pages/TagContent.tsx

@@ -28,7 +28,11 @@ function TagContent(props: QuartzComponentProps) {
       : htmlToJsx(fileData.filePath!, tree)
 
   if (tag === "/") {
-    const tags = [...new Set(allFiles.flatMap((data) => data.frontmatter?.tags ?? []))]
+    const tags = [
+      ...new Set(
+        allFiles.flatMap((data) => data.frontmatter?.tags ?? []).flatMap(getAllSegmentPrefixes),
+      ),
+    ].sort((a, b) => a.localeCompare(b))
     const tagItemMap: Map<string, QuartzPluginData[]> = new Map()
     for (const tag of tags) {
       tagItemMap.set(tag, allPagesWithTag(tag))

quartz/plugins/emitters/tagPage.tsx

@@ -40,6 +40,7 @@ export const TagPage: QuartzEmitterPlugin<FullPageLayout> = (userOpts) => {
       const tags: Set<string> = new Set(
         allFiles.flatMap((data) => data.frontmatter?.tags ?? []).flatMap(getAllSegmentPrefixes),
       )
+
       // add base tag
       tags.add("index")