Added update with kdialog support

plugins/updater/src/updater.rs

@@ -914,7 +914,7 @@ impl Update {
             }
         }
 
-        // 2. Try zenity for a more user-friendly graphical sudo experience
+        // 2. Try zenity or kdialog for a graphical sudo experience
         if let Ok(password) = self.get_password_graphically() {
             if self.install_with_sudo(deb_path, &password)? {
                 return Ok(());
@@ -936,19 +936,33 @@ impl Update {
     }
 
     fn get_password_graphically(&self) -> Result<String> {
-        let output = std::process::Command::new("zenity")
+        // Try zenity first
+        let zenity_result = std::process::Command::new("zenity")
             .args([
                 "--password",
                 "--title=Authentication Required",
                 "--text=Enter your password to install the update:",
             ])
-            .output()?;
+            .output();
 
-        if output.status.success() {
-            Ok(String::from_utf8_lossy(&output.stdout).trim().to_string())
-        } else {
-            Err(Error::AuthenticationFailed)
+        if let Ok(output) = zenity_result {
+            if output.status.success() {
+                return Ok(String::from_utf8_lossy(&output.stdout).trim().to_string());
+            }
         }
+
+        // Fall back to kdialog if zenity fails or isn't available
+        let kdialog_result = std::process::Command::new("kdialog")
+            .args(["--password", "Enter your password to install the update:"])
+            .output();
+
+        if let Ok(output) = kdialog_result {
+            if output.status.success() {
+                return Ok(String::from_utf8_lossy(&output.stdout).trim().to_string());
+            }
+        }
+
+        Err(Error::AuthenticationFailed)
     }
 
     fn install_with_sudo(&self, deb_path: &Path, password: &str) -> Result<bool> {