perf: memoize filetree computation (#490)

Jacky Zhao

2023-09-20 48452231d5fcd14ef218928bde9ae7e5bc745f4a

 quartz/components/RecentNotes.tsx

@@ -48,7 +48,7 @@
                  </div>
                  {page.dates && (
                    <p class="meta">
                      <Date date={getDate(cfg, fileData)!} />
                      <Date date={getDate(cfg, page)!} />
                    </p>
                  )}
                  <ul class="tags">