lock: use default pam config and start without password

Fixes #1800

.config/quickshell/ii/modules/lock/LockContext.qml

@@ -33,8 +33,6 @@ Scope {
     }
 
     function tryUnlock() {
-        if (currentText === "") return;
-
         root.unlockInProgress = true;
         pam.start();
     }
@@ -42,12 +40,6 @@ Scope {
     PamContext {
         id: pam
 
-        // Its best to have a custom pam config for quickshell, as the system one
-        // might not be what your interface expects, and break in some way.
-        // This particular example only supports passwords.
-        configDirectory: "pam"
-        config: "password.conf"
-
         // pam_unix will ask for a response for the password prompt
         onPamMessage: {
             if (this.responseRequired) {

.config/quickshell/ii/modules/lock/LockSurface.qml

@@ -133,7 +133,7 @@ MouseArea {
             id: confirmButton
             implicitWidth: height
             toggled: true
-            enabled: !root.context.unlockInProgress && root.context.currentText.length > 0
+            enabled: !root.context.unlockInProgress
             colBackgroundToggled: Appearance.colors.colPrimary
 
             onClicked: root.context.tryUnlock()

.config/quickshell/ii/modules/lock/pam/password.conf

@@ -1 +0,0 @@
-auth required pam_unix.so