chore(org-mode): Init org-mouse with org-mode

Not much point in having a separate siren module for org-mouse, when you
would probably never want org-mode without org-mouse on too.

core/siren-core-modules.el

@@ -113,7 +113,6 @@
 ;; Org-mode
 (require 'siren-htmlize)
 (require 'siren-org-mode)
-(require 'siren-org-mouse)
 (require 'siren-ox-gfm)
 (require 'siren-ox-jira)
 

modules/org-mode/siren-org-mode.el

@@ -44,7 +44,10 @@
     (flyspell-mode)
     (smartparens-mode +1)
     (visual-line-mode +1)
-    (whitespace-mode +1)))
+    (whitespace-mode +1))
+
+  :config
+  (require 'org-mouse))
 
 (provide 'siren-org-mode)
 ;;; siren-org-mode.el ends here

modules/org-mode/siren-org-mouse.el

@@ -1,13 +0,0 @@
-;;; siren-org-mouse.el --- jimeh's Emacs Siren: org-mouse configuration.
-
-;;; Commentary:
-
-;; Basic configuration for org-mouse.
-
-;;; Code:
-
-(use-package org-mouse
-  :straight (:type built-in))
-
-(provide 'siren-org-mouse)
-;;; siren-org-mouse.el ends here