Fix Issue #1082 added lang attribute for language specific pronunciat…

…ion (#1173)

- lang attribute added to parent div of all UV elements which should cascade down

src/content-handlers/iiif/modules/uv-shared-module/BaseExtension.ts

@@ -42,7 +42,7 @@ import {
   Urls,
   Strings,
 } from "@edsilv/utils";
-import { isVisible } from "../../../../Utils";
+import { defaultLocale, isVisible } from "../../../../Utils";
 import { IIIFEvents } from "../../IIIFEvents";
 import { Events } from "../../../../Events";
 import { StoreApi } from "zustand/vanilla";
@@ -110,6 +110,9 @@ export class BaseExtension<T extends BaseConfig> implements IExtension {
     this.$element.addClass("loading");
     if (this.data.locales) {
       this.$element.addClass(this.data.locales[0].name.toLowerCase());
+      this.$element.prop("lang", this.data.locales[0].name.substring(0,2));
+    } else {
+      this.$element.prop("lang", defaultLocale[0].name.substring(0,2));
     }
 
     if (this.isRightPanelEnabled()) {