fix(style): dark style

src/locales/en-US/common.ts

@@ -238,5 +238,6 @@ export default {
   'common.appearance': 'Appearance',
   'common.appearance.dark': 'Dark',
   'common.appearance.light': 'Light',
-  'common.appearance.system': 'System Default'
+  'common.appearance.system': 'System Default',
+  'common.exception.404': 'Sorry, the page you visited does not exist.'
 };

src/locales/ja-JP/common.ts

@@ -238,7 +238,8 @@ export default {
   'common.appearance': 'Appearance',
   'common.appearance.dark': 'Dark',
   'common.appearance.light': 'Light',
-  'common.appearance.system': 'System Default'
+  'common.appearance.system': 'System Default',
+  'common.exception.404': 'Sorry, the page you visited does not exist.'
 };
 
 // ========== To-Do: Translate Keys (Remove After Translation) ==========
@@ -246,4 +247,5 @@ export default {
 // 2. 'common.appearance.light': 'Light',
 // 3. 'common.appearance.system': 'System Default',
 // 4. 'common.appearance': 'Appearance',
+// 5. 'common.exception.404': 'Sorry, the page you visited does not exist.'
 // ========== End of To-Do List ==========

src/locales/ru-RU/common.ts

@@ -236,9 +236,10 @@ export default {
   'common.appearance': 'Внешний вид',
   'common.appearance.dark': 'Темная',
   'common.appearance.light': 'Светлая',
-  'common.appearance.system': 'Как в системе'
+  'common.appearance.system': 'Как в системе',
+  'common.exception.404': 'Sorry, the page you visited does not exist.'
 };
 
 // ========== To-Do: Translate Keys (Remove After Translation) ==========
-
+// 1. 'common.exception.404': 'Sorry, the page you visited does not exist.'
 // ========== End of To-Do List ==========

src/locales/zh-CN/common.ts

@@ -233,5 +233,6 @@ export default {
   'common.appearance': '外观',
   'common.appearance.dark': '深色',
   'common.appearance.light': '浅色',
-  'common.appearance.system': '跟随系统'
+  'common.appearance.system': '跟随系统',
+  'common.exception.404': '抱歉，你访问的页面不存在'
 };