Optimise loading order for citar-embark

Reduce duplication in setting bibliography file variables, whilst also
being a bit more flexible

init.el

@@ -768,15 +768,10 @@ it will be tried first."
   (org-noter-prefer-root-as-file-level nil))
 
 (use-package citar
-  :after org
   :custom
-  (org-cite-global-bibliography
+  (citar-bibliography
    (list
     (expand-file-name "citar/main.bib" org-directory)))
-  (org-cite-insert-processor 'citar)
-  (org-cite-follow-processor 'citar)
-  (org-cite-activate-processor 'citar)
-  (citar-bibliography org-cite-global-bibliography)
   (citar-library-paths
    (list
     (expand-file-name "citar/library/" org-directory)))
@@ -787,8 +782,14 @@ it will be tried first."
   (LaTeX-mode . citar-capf-setup)
   (org-mode . citar-capf-setup)
   :config
+  (require 'org)
   (require 'nerd-icons)
   (require 'citar-embark)
+  (setopt org-cite-insert-processor 'citar
+          org-cite-follow-processor 'citar
+          org-cite-activate-processor 'citar)
+  (dolist (bibfile citar-bibliography)
+    (add-to-list 'org-cite-global-bibliography bibfile))
   (defvar citar-indicator-files-icons
     (citar-indicator-create
      :symbol (nerd-icons-octicon
@@ -830,9 +831,11 @@ it will be tried first."
                                citar-indicator-cited-icons)))
 
 (use-package citar-embark
-  :after (citar embark)
+  :after citar
   :diminish
   :init
+  (require 'embark)
+  :config
   (citar-embark-mode +1))
 
 (setq org-latex-compiler "lualatex")