新增 EQ撤销功能，用户调节的参数不满意可以点击回退到上一次，撤销栈最多存放 30 步

client/src/locales/data-es.json

@@ -270,6 +270,23 @@
       "closeDrawer": "Cerrar",
       "toastBatchApplied": "Edición por lotes aplicada",
       "toastBatchParseError": "Formato de edición por lotes inválido",
+      "undo": "Deshacer",
+      "toastUndo": "Deshecho: {{detail}}",
+      "toastUndoEmpty": "Deshecho",
+      "undoBandParam": "{{mode}} Banda {{band}} {{param}} {{from}} → {{to}}",
+      "undoSimpleParam": "{{param}} {{from}} → {{to}}",
+      "undoMultiple": "{{count}} cambios ({{summary}})",
+      "undoMoreSuffix": " (+{{count}} más)",
+      "undoDetailSep": "; ",
+      "undoParamFreq": "FREQ",
+      "undoParamGain": "GAIN",
+      "undoParamQ": "Q",
+      "undoParamType": "Filtro",
+      "undoParamPreamp": "Preamp",
+      "undoParamAuto": "AUTO",
+      "undoParamAbMode": "A/B",
+      "undoAutoOn": "ON",
+      "undoAutoOff": "OFF",
       "toastBrandsFail": "Error al cargar las marcas",
       "toastModelsFail": "Error al cargar los modelos",
       "toastCurveFail": "Error al cargar la curva",