Amend downloadFiles loop to a Promise.all to ensure writes are complete

Author: EvilGenius13

.changeset/free-suns-stand.md

@@ -0,0 +1,5 @@
+---
+'@shopify/theme': patch
+---
+
+Change download files loop to a Promise all to ensure all files are always downloaded and display more accurate progress

packages/theme/src/cli/utilities/theme-downloader.ts

@@ -90,8 +90,5 @@ async function downloadFiles(theme: Theme, fileSystem: ThemeFileSystem, filename
   const assets = await fetchThemeAssets(theme.id, filenames, session)
   if (!assets) return
 
-  // eslint-disable-next-line @typescript-eslint/no-misused-promises
-  assets.forEach(async (asset: ThemeAsset) => {
-    await fileSystem.write(asset)
-  })
+  await Promise.all(assets.map((asset: ThemeAsset) => fileSystem.write(asset)))
 }