src: Fix Linux build

Syncs the parameters between the Windows and Linux create_shortcut
functions. Makes the install_desktop_shortcut only work on Windows where
it has create_desktop_shortcut implemented.

src/native/mod.rs

@@ -314,6 +314,7 @@ mod natives {
         target: &str,
         args: &str,
         working_dir: &str,
+        exe_path: &str,
     ) -> Result<String, String> {
         // FIXME: no icon will be shown since no icon is provided
         let data_local_dir = dirs::data_local_dir();

src/tasks/install_desktop_shortcut.rs

@@ -11,6 +11,7 @@ use config::PackageDescription;
 
 use logging::LoggingErrors;
 
+#[cfg(windows)]
 use native::create_desktop_shortcut;
 
 pub struct InstallDesktopShortcutTask {
@@ -70,6 +71,7 @@ impl Task for InstallDesktopShortcutTask {
             "maintenancetool"
         };
 
+        #[cfg(windows)]
         for shortcut in package.shortcuts {
             let tool_path = path.join(platform_extension);
             let tool_path = tool_path