清理项目没用的代码，新增 EQ 预设管理界面

client/src/locales/data-en.json

@@ -325,6 +325,12 @@
       "toastNewEqOk": "New headphone EQ saved",
       "toastTargetSelected": "Target selected: {{name}}",
       "deleteConfirm": "Delete headphone \"{{name}}\"?",
+      "batchDeleteConfirm": "Delete {{count}} selected preset(s)?",
+      "deletePresetConfirm": "Delete preset \"{{name}}\"?",
+      "toastRenamed": "Renamed",
+      "toastRenameFail": "Rename failed",
+      "renameEmptyName": "Name cannot be empty",
+      "renameNameExists": "Name already exists",
       "toastDeleted": "Headphone removed",
       "toastDeleteFail": "Failed to delete headphone",
       "bassBoost": "Bass boost: fc {{fc}}, q {{q}}, gain {{gain}} dB",

client/src/locales/data-zh-HK.json

@@ -261,6 +261,12 @@
       "toastNewEqOk": "新耳機 EQ 已上報",
       "toastTargetSelected": "已選目標：{{name}}",
       "deleteConfirm": "是否刪除耳機「{{name}}」？",
+      "batchDeleteConfirm": "是否刪除選中的 {{count}} 個預設？",
+      "deletePresetConfirm": "是否刪除預設「{{name}}」？",
+      "toastRenamed": "已重新命名",
+      "toastRenameFail": "重新命名失敗",
+      "renameEmptyName": "名稱不能為空",
+      "renameNameExists": "名稱已存在",
       "toastDeleted": "已刪除耳機",
       "toastDeleteFail": "刪除耳機失敗",
       "bassBoost": "低頻增強：fc {{fc}}，q {{q}}，gain {{gain}}dB",

client/src/locales/data-zh.json

@@ -261,6 +261,12 @@
       "toastNewEqOk": "新耳机 EQ 已上报",
       "toastTargetSelected": "已选目标：{{name}}",
       "deleteConfirm": "是否删除耳机「{{name}}」？",
+      "batchDeleteConfirm": "是否删除选中的 {{count}} 个预设？",
+      "deletePresetConfirm": "是否删除预设「{{name}}」？",
+      "toastRenamed": "已重命名",
+      "toastRenameFail": "重命名失败",
+      "renameEmptyName": "名称不能为空",
+      "renameNameExists": "名称已存在",
       "toastDeleted": "已删除耳机",
       "toastDeleteFail": "删除耳机失败",
       "bassBoost": "低频增强：fc {{fc}}，q {{q}}，gain {{gain}}dB",