Update cat and es json files

app/frontend/src/locales/cat.json

@@ -26,7 +26,7 @@
     },
     "report": {
         "show_full_report": "Mostra l'informe complet",
-        "start_new_capture": "Inicieu una nova captura",
+        "start_new_capture": "Nova captura",
         "save_capture": "Desa la captura",
         "numbers": [
             "zero",

app/frontend/src/locales/es.json

@@ -26,7 +26,7 @@
     },
     "report": {
         "show_full_report": "Mostrar el informe completo",
-        "start_new_capture": "Iniciar una nueva captura",
+        "start_new_capture": "Nueva captura",
         "save_capture": "Guardar la captura",
         "numbers": [
             "cero",