feat: added -9 code to kill command when killing the process from the popup view (#2900)

Kit/process.swift

@@ -265,7 +265,7 @@ public class ProcessView: NSStackView {
     
     @objc private func kill() {
         if let pid = self.pid {
-            asyncShell("kill \(pid)")
+            _ = syncShell("kill -9 \(pid)")
         }
     }
 }