feat(tool): qr-code generator

src/composable/downloadBase64.ts

@@ -0,0 +1,12 @@
+import type { Ref } from 'vue';
+
+export function useDownloadFileFromBase64({ source, filename = 'file' }: { source: Ref<string>; filename?: string }) {
+  return {
+    download() {
+      const a = document.createElement('a');
+      a.href = source.value;
+      a.download = filename;
+      a.click();
+    },
+  };
+}