docs: add tauri-plugin-valtio as a third-party library (#1050)

Author: ferreira-tb

docs/resources/libraries.mdx

@@ -27,6 +27,8 @@ Disclaimer: These libraries may have bugs, limited maintenance, or other limitat
 
 - [swc-plugin-valtio](https://github.com/sosukesuzuki/swc-plugin-valtio) - Valtio useProxy transformer for SWC.
 
+- [tauri-plugin-valtio](https://github.com/ferreira-tb/tauri-store/tree/main/packages/tauri-plugin-valtio) - Persistent valtio state for Tauri, accessible from both JavaScript and Rust.
+
 - [use-valtio](https://github.com/dai-shi/use-valtio) - Another custom hook to use Valtio proxy state
 
 - [valtio-element](https://github.com/lxsmnsyc/valtio-element) - Create reactive, declarative custom elements with valtio