feat: add copy & download actions for modal

fe-app-podkop/src/helpers/copyToClipboard.ts

@@ -0,0 +1,12 @@
+export function copyToClipboard(text: string) {
+  const textarea = document.createElement('textarea');
+  textarea.value = text;
+  document.body.appendChild(textarea);
+  textarea.select();
+  try {
+    document.execCommand('copy');
+  } catch (_err) {
+    console.error('copyToClipboard - e', _err);
+  }
+  document.body.removeChild(textarea);
+}

fe-app-podkop/src/helpers/downloadAsTxt.ts

@@ -0,0 +1,15 @@
+export function downloadAsTxt(text: string, filename: string) {
+  const blob = new Blob([text], { type: 'text/plain;charset=utf-8' });
+
+  const link = document.createElement('a');
+  link.href = URL.createObjectURL(blob);
+
+  const safeName = filename.endsWith('.txt') ? filename : `${filename}.txt`;
+  link.download = safeName;
+
+  document.body.appendChild(link);
+  link.click();
+
+  document.body.removeChild(link);
+  URL.revokeObjectURL(link.href);
+}