[bug][notification] Notification do not show up in Linux Cinnamon DE

Hi there, using latest Tauri Plugin Notification, the notification do not show up using `app_handle.notification()`

Complete discussion :

https://discordapp.com/channels/616186924390023171/1218338813940596867

## Brief Summary:

Using the below code snippet, the notification does not show up in Cinnamon Desktop Environment. However, the **notification sound can be heard**. I am using Cinnamon right now, and am testing other DE as well. Also, using notification on `App` instead of `AppHandle` does show the notification.

## Cargo Tauri Info

```shell
[✔] Environment
- OS: Garuda Linux Soaring X64
✔ webkit2gtk-4.1: 2.42.5
✔ rsvg2: 2.57.2
✔ rustc: 1.78.0-nightly (0ecbd0605 2024-02-25)
✔ cargo: 1.78.0-nightly (194a60b29 2024-02-21)
✔ rustup: 1.27.0 (2024-03-12)
✔ Rust toolchain: nightly-2024-02-26-x86_64-unknown-linux-gnu (environment override by RUSTUP_TOOLCHAIN)
- node: 21.7.0
- pnpm: 8.15.2
- yarn: 1.22.21
- npm: 10.5.0

[-] Packages
- tauri [RUST]: 2.0.0-beta.11
- tauri-build [RUST]: 2.0.0-beta.9
- wry [RUST]: 0.37.0
- tao [RUST]: 0.26.1
- tauri-cli [RUST]: 2.0.0-beta.6
- @tauri-apps/api : not installed!
- @tauri-apps/cli [NPM]: 2.0.0-beta.6

[-] App
- build-type: bundle
- CSP: unset
- frontendDist: ../src
```

## Code Snippet

```rust
use tauri_plugin_notification::NotificationExt;

// Learn more about Tauri commands at https://tauri.app/v1/guides/features/command
#[tauri::command]
fn greet(app_handle: tauri::AppHandle, name: &str) -> String {

if let Err(e) = app_handle.notification().builder().body("body").title("title").show() {
println!("failed to show notification: {:?}", e);
}

format!("Hello, {}! You've been greeted from Rust!", name)
}

#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
let app = tauri::Builder::default()
.plugin(tauri_plugin_notification::init())
.plugin(tauri_plugin_shell::init())
.invoke_handler(tauri::generate_handler![greet])
.build(tauri::generate_context!())
.expect("error while running tauri application");

app.run(|_app_handle, _run_event| {});
}
```

**Edit:** There is no issue on Gnome Desktop Environment. So, we can safely assume that this bug is present only on Cinnamon Desktops.