add datepicker translation

Author: Petr Kachanovsky

adminforth/spa/src/components/CustomDatePicker.vue

@@ -129,7 +129,8 @@ watch(start, () => {
 })
 
 function initDatepickers() {
-  const options = {format: 'dd M yyyy'};
+  const LS_LANG_KEY = `afLanguage`;
+  const options = {format: 'dd M yyyy', language: localStorage.getItem(LS_LANG_KEY)};
 
   if (props.autoHide) {
     options.autohide = true;

adminforth/spa/src/components/CustomDateRangePicker.vue

@@ -184,10 +184,9 @@ watch(end, () => {
 })
 
 function initDatepickers() {
-
-  datepickerStartObject.value = new Datepicker(datepickerStartEl.value, {format: 'dd M yyyy'});
-
-  datepickerEndObject.value = new Datepicker(datepickerEndEl.value, {format: 'dd M yyyy'});
+  const LS_LANG_KEY = `afLanguage`;
+  datepickerStartObject.value = new Datepicker(datepickerStartEl.value, {format: 'dd M yyyy', language: localStorage.getItem(LS_LANG_KEY)});
+  datepickerEndObject.value = new Datepicker(datepickerEndEl.value, {format: 'dd M yyyy', language: localStorage.getItem(LS_LANG_KEY)});
   addChangeDateListener();
 }