i18n: localize aria-label (markdown_import)

src/public/app/widgets/dialogs/markdown_import.js

@@ -12,7 +12,7 @@ const TPL = `
         <div class="modal-content">
             <div class="modal-header">
                 <h5 class="modal-title">${t("markdown_import.dialog_title")}</h5>
-                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="${t("markdown_import.close")}"></button>
             </div>
             <div class="modal-body">
                 <p>${t("markdown_import.modal_body_text")}</p>

src/public/translations/en/translation.json

@@ -214,6 +214,7 @@
   },
   "markdown_import": {
     "dialog_title": "Markdown import",
+    "close": "Close",
     "modal_body_text": "Because of browser sandbox it's not possible to directly read clipboard from JavaScript. Please paste the Markdown to import to textarea below and click on Import button",
     "import_button": "Import Ctrl+Enter",
     "import_success": "Markdown content has been imported into the document."