chore(completion): only load company/fci-mode fix when fci is loaded

modules/completion/siren-company.el

@@ -7,11 +7,6 @@
 ;;; Code:
 
 (use-package company
-  :hook
-  (company-completion-started . siren-company--turn-off-fci)
-  (company-completion-finished . siren-company--maybe-turn-on-fci)
-  (company-completion-cancelled . siren-company--maybe-turn-on-fci)
-
   :bind
   ;; Enable indent and complete at point functionality by pressing tab.
   ("TAB" . company-indent-or-complete-common)
@@ -31,21 +26,28 @@
   ;; is displayed on top (happens near the bottom of windows)
   (company-tooltip-flip-when-above t)
 
-  :init
-  (defun siren-company--turn-off-fci (&rest ignore)
-    (when (boundp 'fci-mode)
-      (when fci-mode
-        (turn-off-fci-mode)
-        (setq siren-company--fci-mode-on-p t))))
-
-  (defun siren-company--maybe-turn-on-fci (&rest ignore)
-    (when siren-company--fci-mode-on-p
-      (turn-on-fci-mode)
-      (setq siren-company--fci-mode-on-p nil)))
-
   :config
   (defvar-local siren-company--fci-mode-on-p nil)
-  (global-company-mode 1))
+  (global-company-mode 1)
+
+  (with-eval-after-load 'fill-column-indicator
+    (defun siren-company--turn-off-fci (&rest ignore)
+      (when (boundp 'fci-mode)
+        (when fci-mode
+          (turn-off-fci-mode)
+          (setq siren-company--fci-mode-on-p t))))
+
+    (defun siren-company--maybe-turn-on-fci (&rest ignore)
+      (when siren-company--fci-mode-on-p
+        (turn-on-fci-mode)
+        (setq siren-company--fci-mode-on-p nil)))
+
+    (add-hook 'company-completion-started-hook
+              #'siren-company--turn-off-fci)
+    (add-hook 'company-completion-finished-hook
+              #'siren-company--maybe-turn-on-fci)
+    (add-hook 'company-completion-cancelled-hook
+              #'siren-company--maybe-turn-on-fci)))
 
 (provide 'siren-company)
 ;;; siren-company.el ends here