fix: attempt auto-download after animation encode

Author: jal-co

.changeset/auto-download.md

@@ -0,0 +1,5 @@
+---
+"holosticker": patch
+---
+
+Animation exports auto-download again after encoding, with the in-dialog Save button as fallback

src/App.tsx

@@ -183,6 +183,12 @@ export default function App() {
             if (prev) URL.revokeObjectURL(prev.url)
             return result
           })
+          // attempt the download; if the browser drops it because the
+          // click's activation expired, the Save button is right there
+          const a = document.createElement("a")
+          a.href = result.url
+          a.download = result.filename
+          a.click()
         }
       } finally {
         setExporting(false)