power: replace hibernate with "suspend behavior" opt

Common/SettingsData.qml

@@ -34,6 +34,12 @@ Singleton {
         Custom
     }
 
+    enum SuspendBehavior {
+        Suspend,
+        Hibernate,
+        SuspendThenHibernate
+    }
+
     readonly property string defaultFontFamily: "Inter Variable"
     readonly property string defaultMonoFontFamily: "Fira Code"
     readonly property string _homeUrl: StandardPaths.writableLocation(StandardPaths.HomeLocation)
@@ -213,11 +219,11 @@ Singleton {
     property int acMonitorTimeout: 0
     property int acLockTimeout: 0
     property int acSuspendTimeout: 0
-    property int acHibernateTimeout: 0
+    property int acSuspendBehavior: SettingsData.SuspendBehavior.Suspend
     property int batteryMonitorTimeout: 0
     property int batteryLockTimeout: 0
     property int batterySuspendTimeout: 0
-    property int batteryHibernateTimeout: 0
+    property int batterySuspendBehavior: SettingsData.SuspendBehavior.Suspend
     property bool lockBeforeSuspend: false
     property bool loginctlLockIntegration: true
     property string launchPrefix: ""

Common/settings/SettingsSpec.js

@@ -136,11 +136,11 @@ var SPEC = {
     acMonitorTimeout: { def: 0 },
     acLockTimeout: { def: 0 },
     acSuspendTimeout: { def: 0 },
-    acHibernateTimeout: { def: 0 },
+    acSuspendBehavior: { def: 0 },
     batteryMonitorTimeout: { def: 0 },
     batteryLockTimeout: { def: 0 },
     batterySuspendTimeout: { def: 0 },
-    batteryHibernateTimeout: { def: 0 },
+    batterySuspendBehavior: { def: 0 },
     lockBeforeSuspend: { def: false },
     loginctlLockIntegration: { def: true },
     launchPrefix: { def: "" },