Textfield with the 'Calendar Picker' widget type do not have their calendar translated according to the form language

[llemire-exp]

Describe the bug
Textfield with the 'Calendar Picker' widget type do not have their calendar translated according to the form language

Version/Branch
Latest

To Reproduce

1. Create a new form
2. add a textfield component with the property { "widget": { "type": "calendar" } }
3. render the form and set the language to 'fr' or any other language than english
4. click on the textfield component

Expected behavior
The Date picker should be translated into french

Screenshots
here is the Date picker with the Date/Time component

Here is the Date picker with the textfield component with a calendar widget:

Additional Information

I generated the form using this form source and by setting the language this way:

    const formSource = {
	"display": "form",
	"components": [
		{
			"label": "Text Field",
			"widget": {
				"type": "calendar",
				"altInput": true,
				"allowInput": true,
				"clickOpens": true,
				"enableDate": true,
				"enableTime": true,
				"mode": "single",
				"noCalendar": false,
				"format": "yyyy-MM-dd hh:mm a",
				"dateFormat": "yyyy-MM-ddTHH:mm:ssZ",
				"useLocaleSettings": false,
				"hourIncrement": 1,
				"minuteIncrement": 5,
				"time_24hr": false,
				"saveAs": "text",
				"displayInTimezone": "viewer",
				"locale": "en"
			},
			"applyMaskOn": "change",
			"validateWhenHidden": false,
			"key": "textField",
			"type": "textfield",
			"input": true,
			"tableView": true
		},
		{
			"label": "Date / Time",
			"datePicker": {
				"disableWeekends": false,
				"disableWeekdays": false
			},
			"enableMinDateInput": false,
			"enableMaxDateInput": false,
			"validateWhenHidden": false,
			"key": "dateTime",
			"type": "datetime",
			"input": true,
			"tableView": false,
			"widget": {
				"type": "calendar",
				"displayInTimezone": "viewer",
				"locale": "en",
				"useLocaleSettings": false,
				"allowInput": true,
				"mode": "single",
				"enableTime": true,
				"noCalendar": false,
				"format": "yyyy-MM-dd hh:mm a",
				"hourIncrement": 1,
				"minuteIncrement": 1,
				"time_24hr": false,
				"minDate": null,
				"disableWeekends": false,
				"disableWeekdays": false,
				"maxDate": null
			}
		}
	]
};

Formio.createForm(document.getElementById('formio'), formSource).then(function(form) {
  form.language = 'fr'
});

my js-fiddle:

index-jsfiddle-kdpz4jvn-0.html