fix(i18n): add missing grid.copied translation key

apps/desktop/src/i18n/locales/en.ts

@@ -267,6 +267,7 @@ export default {
     exportSelectedRowsMarkdown: "Export Selected Rows as Markdown",
     exported: "Exported",
     exportFailed: "Export failed: {message}",
+    copied: "Copied",
     copyFailed: "Copy failed: {message}",
     filter: "Filter",
     localFilter: "Local column filter",

apps/desktop/src/i18n/locales/es.ts

@@ -262,6 +262,7 @@ export default {
     exportSelectedRowsMarkdown: "Exportar filas seleccionadas como Markdown",
     exported: "Exportado",
     exportFailed: "Error al exportar: {message}",
+    copied: "Copiado",
     copyFailed: "Error al copiar: {message}",
     filter: "Filtrar",
     localFilter: "Filtro local de columna",

apps/desktop/src/i18n/locales/zh-CN.ts

@@ -265,6 +265,7 @@ export default {
     exportSelectedRowsMarkdown: "导出选中行为 Markdown",
     exported: "导出完成",
     exportFailed: "导出失败：{message}",
+    copied: "已复制",
     copyFailed: "复制失败：{message}",
     filter: "筛选",
     localFilter: "本地列筛选",