fix issue with locale extension builds

src/editor/extensions/ext-imagelib/ext-imagelib.js

@@ -6,13 +6,26 @@
  * @copyright 2010 Alexis Deveria
  *
  */
-import {loadExtensionTranslation} from '../../locale.js';
+
+const loadExtensionTranslation = async function (lang) {
+  let translationModule;
+  try {
+    // eslint-disable-next-line node/no-unsupported-features/es-syntax
+    translationModule = await import(`./locale/${lang}.js`);
+  } catch (_error) {
+    // eslint-disable-next-line no-console
+    console.error(`Missing translation (${lang}) - using 'en'`);
+    // eslint-disable-next-line node/no-unsupported-features/es-syntax
+    translationModule = await import(`./locale/en.js`);
+  }
+  return translationModule.default;
+};
 
 export default {
   name: 'imagelib',
   async init ({$, decode64, dropXMLInternalSubset}) {
     const svgEditor = this;
-    const imagelibStrings = await loadExtensionTranslation('imagelib', svgEditor.curPrefs.lang);
+    const imagelibStrings = await loadExtensionTranslation(svgEditor.curPrefs.lang);
 
     const {uiStrings, canvas: svgCanvas} = svgEditor;