style(config): Reformat Emacs Lisp code for consistency

Standardize formatting across multiple init files: expand
single-line use-package keywords onto separate lines, fix
indentation, remove outdated comments, and clean up whitespace. Also
adds mc/keymap <return> binding and improves fcitx5 startup logic in
EXWM.

lisp/init-completion.el

@@ -6,25 +6,29 @@
 
 ;; eglot
 (use-package eglot
-  :hook ((python-mode . eglot-ensure)
-         ;; (scheme-mode . eglot-ensure)
-         )
+  :hook
+  ((python-mode . eglot-ensure)
+   ;; (scheme-mode . eglot-ensure)
+   )
   :config
   (setq eglot-send-changes-idle-time 0.25)
   (add-to-list 'eglot-server-programs
                '(scheme-mode . ("guile-lsp-server")))
 
-  (add-hook 'eglot-managed-mode-hook    ;; 在scheme模式禁用eglot补全，保留其他功能
-          (lambda ()
-            (when (derived-mode-p 'scheme-mode)
-              (setq-local completion-at-point-functions
-                          (remq 'eglot-completion-at-point
-                                completion-at-point-functions))))))
+  ;; 在scheme模式禁用eglot补全，保留其他功能
+  (add-hook 'eglot-managed-mode-hook
+            (lambda ()
+              (when (derived-mode-p 'scheme-mode)
+		(setq-local completion-at-point-functions
+                            (remq 'eglot-completion-at-point
+                                  completion-at-point-functions))))))
 
 ;; corfu
 (use-package corfu
-  :autoload (corfu-quit consult-completion-in-region)
-  :functions (persistent-scratch-save)
+  :autoload
+  (corfu-quit consult-completion-in-region)
+  :functions
+  (persistent-scratch-save)
   :custom
   (corfu-auto t)
   (corfu-auto-prefix 2)
@@ -47,8 +51,9 @@
   ;;Quit completion before saving
   (add-hook 'before-save-hook #'corfu-quit)
   (advice-add #'persistent-scratch-save :before #'corfu-quit)
-  :bind   (:map corfu-map
-	            ("RET" . nil)))
+  :bind
+  (:map corfu-map
+	("RET" . nil)))
 
 ;; 在eshell中使用tab打开补全
 (add-hook 'eshell-mode-hook