feat: override bookmarks according to sidebar config (#251)

Signed-off-by: JounQin <admin@1stg.me>

Author: JounQin

.changeset/itchy-fireants-bake.md

@@ -0,0 +1,6 @@
+---
+"@alauda/doom": minor
+"@alauda/doom-export": minor
+---
+
+feat: override bookmarks according to sidebar config