fix: 隐藏 ubuntu 任务栏图标，避免安装后显示齿轮图标 (#836)

Author: QingFengpoor

src-tauri/BongoCat.desktop

@@ -5,4 +5,5 @@ Exec={{{exec}}}
 Icon={{{icon}}}
 Categories={{{categories}}}
 Comment={{{comment}}}
+StartupWMClass={{{Bongo-cat}}}
 Terminal=false

src-tauri/tauri.conf.json

@@ -31,7 +31,8 @@
         "titleBarStyle": "Overlay",
         "hiddenTitle": true,
         "minWidth": 800,
-        "minHeight": 600
+        "minHeight": 600,
+        "skipTaskbar": true
       }
     ],
     "security": {