Add single instance, remove box thing & change some styles & other stuff

src-tauri/Cargo.toml

@@ -18,3 +18,13 @@ serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.150"
 tauri-plugin-clipboard-manager = "2.3.2"
 tauri-plugin-os = "2.3.2"
+
+[target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
+tauri-plugin-single-instance = "2.4.2"
+
+[profile.release]
+opt-level = 3
+lto = "fat"
+codegen-units = 1
+strip = true
+panic = "abort"

src-tauri/src/lib.rs

@@ -1,6 +1,13 @@
+use tauri::Manager;
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
+        .plugin(tauri_plugin_single_instance::init(|app, _args, _cwd| {
+            if let Some(window) = app.get_webview_window("main") {
+                let _ = window.set_focus();
+            }
+        }))
         .plugin(tauri_plugin_os::init())
         .plugin(tauri_plugin_clipboard_manager::init())
         .invoke_handler(tauri::generate_handler![])