GODT-1411: refactor SettingView content to fill height

internal/frontend/qml/HelpView.qml

@@ -24,6 +24,8 @@ import Proton 4.0
 SettingsView {
     id: root
 
+    fillHeight: true
+
     Label {
         colorScheme: root.colorScheme
         text: qsTr("Help")
@@ -88,6 +90,12 @@ SettingsView {
         Layout.fillWidth: true
     }
 
+    // fill height so the footer label will be allways attached to the bottom
+    Item {
+        Layout.fillHeight: true
+        Layout.fillWidth: true
+    }
+
     Label {
         Layout.alignment: Qt.AlignHCenter
         colorScheme: root.colorScheme