Add blog post and hero image for Files v4.0.12 release

Introduces a new blog post announcing the release of Files v4.0.12, detailing new features, improvements, and fixes. Adds a corresponding hero image for the post.

Author: yaira2

src/routes/blog/posts/v4-0-12/+page.md

@@ -0,0 +1,41 @@
+---
+title: Announcing Files v4.0.12
+description: Announcing Files Preview v4.0.12 for users of the preview version.
+thumbnail: /blog-resources/v4-0-12/Hero.webp
+date: 9/30/2025
+author: files-community
+---
+
+Today we are releasing **Files Preview v4.0.12** for users of the preview version.
+
+An update icon should be displayed in the top right corner of the app for existing users, while new users can get started from our [download](/download/) page. Additionally, you can help support the project by purchasing Files on the [Microsoft Store](ms-windows-store://pdp/?ProductId=9NSQD9PKV3SS&cid=FilesWebsite) or by sponsoring us on [GitHub](https://github.com/sponsors/yaira2). Your support is greatly appreciated but entirely optional.
+
+## What's New in Files v4.0.12
+
+### Added New 'Discovering' Phase to Status Center
+
+The Status Center now indicates when it's actively discovering items for a file operation. Previously, this phase lacked visual feedback, making it look like the file operation was stuck.
+
+### Improved 'Cancel' Button Placement in Status Center
+
+We've relocated the 'Cancel' file operation button in the Status Center to a menu flyout, improving clarity and making the interface more intuitive.
+
+
+## Fixes
+
+- Fixed an issue where release notes were mirrored in RTL.
+- Fixed an issue where the home button didn't work when viewing tags.
+- Fixed an issue with opening items from search results in Columns View.
+- Fixed an issue with opening certain network locations.
+- Fixed an issue where pinned folder icons didn't load until restarting Files.
+
+
+## Conclusion
+
+As always, we appreciate your feedback and suggestions on how to improve Files. You can reach us on [Discord](https://discord.gg/files) and on [GitHub](https://github.com/files-community/Files/).
+
+Thank you for using Files! 😊
+
+---
+
+Download Files Preview from the [Microsoft Store](ms-windows-store://pdp/?ProductId=9NSQD9PKV3SS&cid=FilesWebsite) | Sponsor us on [GitHub](https://github.com/sponsors/yaira2/)