windows replace uni with cmd to start up main window after installation (#8235)

This is to avoid uni link not working

Other change: The install window now has the title "appname - Install" to distinguish it from the main application window.

Signed-off-by: 21pages <pages21@163.com>

src/platform/windows.rs

@@ -2185,12 +2185,10 @@ sc start {app_name}
 
 fn run_after_run_cmds(silent: bool) {
     let (_, _, _, exe) = get_install_info();
-    let app = crate::get_app_name().to_lowercase();
     if !silent {
         log::debug!("Spawn new window");
         allow_err!(std::process::Command::new("cmd")
-            .arg("/c")
-            .arg(format!("timeout /t 2 & start {app}://"))
+            .args(&["/c", "timeout", "/t", "2", "&", &format!("{exe}")])
             .creation_flags(winapi::um::winbase::CREATE_NO_WINDOW)
             .spawn());
     }