fix(release): sync versions to v0.4.0 and wire up semantic-release npm plugin

- Add @semantic-release/npm (npmPublish: false) to bump root package.json
- Add prepareCmd to exec plugin to sync Cargo.toml on each release
- Add Cargo.toml to @semantic-release/git assets
- Manually advance package.json and Cargo.toml from 0.1.0 → 0.4.0

packages/desktop/src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "openconcho"
-version = "0.1.0"
+version = "0.4.0"
 edition = "2021"
 
 [lib]