greeter: New Greeter Settings UI & Sync fixes

- Add PAM Auth via GUI
- Added new sync flags
- Refactored cache directory management & many others
- Fix for wireplumber permissions
- Fix for polkit auth w/icon
- Add pam_fprintd timeout=5 to prevent 30s auth blocks when using password

quickshell/Common/settings/Processes.qml

@@ -52,7 +52,7 @@ Singleton {
     }
 
     property var fprintdDetectionProcess: Process {
-        command: ["sh", "-c", "command -v fprintd-list >/dev/null 2>&1"]
+        command: ["sh", "-c", "command -v fprintd-list >/dev/null 2>&1 && fprintd-list \"${USER:-$(id -un)}\" >/dev/null 2>&1"]
         running: false
         onExited: function (exitCode) {
             if (!settingsRoot)

quickshell/Common/settings/SettingsSpec.js

@@ -166,6 +166,15 @@ var SPEC = {
     lockDateFormat: { def: "" },
     greeterRememberLastSession: { def: true },
     greeterRememberLastUser: { def: true },
+    greeterEnableFprint: { def: false },
+    greeterEnableU2f: { def: false },
+    greeterWallpaperPath: { def: "" },
+    greeterUse24HourClock: { def: true },
+    greeterShowSeconds: { def: false },
+    greeterPadHours12Hour: { def: false },
+    greeterLockDateFormat: { def: "" },
+    greeterFontFamily: { def: "" },
+    greeterWallpaperFillMode: { def: "" },
     mediaSize: { def: 1 },
 
     appLauncherViewMode: { def: "list" },