Feat: add theme switcher (#18093)

web/i18n/en-US/common.ts

@@ -1,4 +1,10 @@
 const translation = {
+  theme: {
+    theme: 'Theme',
+    light: 'light',
+    dark: 'dark',
+    auto: 'system',
+  },
   api: {
     success: 'Success',
     actionSuccess: 'Action succeeded',

web/i18n/ja-JP/common.ts

@@ -1,4 +1,10 @@
 const translation = {
+  theme: {
+    theme: 'テーマ',
+    light: '明るい',
+    dark: '暗い',
+    auto: 'システム',
+  },
   api: {
     success: '成功',
     actionSuccess: 'アクションが成功しました',

web/i18n/zh-Hans/common.ts

@@ -1,4 +1,10 @@
 const translation = {
+  theme: {
+    theme: '主题',
+    light: '浅色',
+    dark: '深色',
+    auto: '自动',
+  },
   api: {
     success: '成功',
     actionSuccess: '操作成功',