fix: task bar icon misssing under linux wayland (#1816)

src-tauri/template/clash-verge.desktop

@@ -2,8 +2,9 @@
 Categories={{{categories}}}
 Comment={{{comment}}}
 Exec={{{exec}}} %u
+StartupWMClass={{{exec}}}
 Icon={{{icon}}}
 Name={{{name}}}
 Terminal=false
 Type=Application
-MimeType=x-scheme-handler/clash;
+MimeType=x-scheme-handler/clash;