fix(docs): enable tauri/dox feature on docs.rs build (#545)

.changes/fix-docs-build.md

@@ -0,0 +1,31 @@
+---
+"app": patch
+"authenticator": patch
+"autostart": patch
+"cli": patch
+"clipboard-manager": patch
+"dialog": patch
+"fs": patch
+"global-shortcut": patch
+"http": patch
+"localhost": patch
+"log-plugin": patch
+"notification": patch
+"os": patch
+"persisted-scope": patch
+"positioner": patch
+"process": patch
+"shell": patch
+"single-instance": patch
+"sql": patch
+"store": patch
+"stronghold": patch
+"updater": patch
+"upload": patch
+"websocket": patch
+"window": patch
+"window-state": patch
+---
+
+Fixes docs.rs build by enabling the `tauri/dox` feature flag.
+