[MM-54742] Force secure keyboard entry off when window loses focus and when servers switch (#2869)

* [MM-54742] Force secure keyboard entry off when window loses focus and when servers switch

* Fix for when window is not focused, added tests

src/main/app/intercom.ts

@@ -153,6 +153,11 @@ export function handleToggleSecureInput(event: IpcMainEvent, secureInput: boolea
         return;
     }
 
+    // Don't allow this to turn on if the main window isn't focused
+    if (secureInput && !MainWindow.get()?.isFocused()) {
+        return;
+    }
+
     // Enforce macOS to restrict processes from reading the keyboard input when in a password field
     log.debug('handleToggleSecureInput', secureInput);
     app.setSecureKeyboardEntryEnabled(secureInput);