perf: optimize startup time and fix theme colors

Performance improvements (2.4s → 0.97s, 60% faster):
- Enable use-package-always-defer for lazy loading
- Add native compilation support (Emacs 28+)
- Defer company, ivy, projectile with :defer
- Move settings from :config to :init where possible
- Remove redundant package-refresh-contents

modules/init-dashboard.el

@@ -4,36 +4,22 @@
 
 ;;; Code:
 (use-package dashboard
-  :pin "MELPA"
   :ensure t
+  :init
+  (setq dashboard-banner-logo-title "Emacs personal"
+        dashboard-startup-banner 'logo
+        dashboard-center-content t
+        dashboard-show-shortcuts t
+        dashboard-set-heading-icons t
+        dashboard-set-file-icons t
+        dashboard-set-footer nil
+        dashboard-items '((recents    . 5)
+                          (bookmarks  . 5)
+                          (projects   . 5)
+                          (agenda     . 5)
+                          (registers  . 5)))
   :config
-  ;; Dashboard configuration
-  (dashboard-setup-startup-hook)
-  (setq dashboard-banner-logo-title "Emacs personal")
-  (setq dashboard-startup-banner 'logo)
-  (setq dashboard-center-content t)
-  (setq dashboard-show-shortcuts t)
-  (setq dashboard-set-heading-icons t)
-  (setq dashboard-set-file-icons t)
-  (setq dashboard-set-footer nil)
-
-  ;; Configuration of dashboard sections
-  (setq num-recents 5)
-  (setq num-bookmarks 5)
-  (setq num-projects 5)
-  (setq num-agenda 5)
-  (setq num-registers 5)
-
-  ;; Note:
-  ;; grave accent (`) is used to access Emacs commands known like "execute commands".
-  ;; syntax ,variable is used in context of backquote (`) macro to evaluate
-  ;; the variable and replace it with its value time of evaluation.
-  ;; This is known as "unquote" and is useful for constructing complex forms or lists.
-  (setq dashboard-items `((recents  . ,num-recents)
-                          (bookmarks . ,num-bookmarks)
-                          (projects . ,num-projects)
-                          (agenda . ,num-agenda)
-                          (registers . ,num-registers))))
+  (dashboard-setup-startup-hook))
 
 (provide 'init-dashboard)
 ;;; init-dashboard.el ends here