I solved using Capacitor-cli hooks,
package.json
scripts: {
...
"capacitor:update:after": "cp android/app/src/main/res/values/strings.xml android/capacitor-cordova-android-plugins/src/main/res/values/strings.xml",
"capacitor:sync:after": "cp android/app/src/main/res/values/strings.xml android/capacitor-cordova-android-plugins/src/main/res/values/strings.xml"
}
this copy the strings.xml
file to the capacitor-cordova-android-plugins folder