Appearance pane in settings: fix custom animation length TextBox not working

Author: Yusyuriv

Flow.Launcher/SettingPages/Views/SettingsPaneTheme.xaml

@@ -615,9 +615,9 @@
                         <TextBox
                             MinWidth="80"
                             Margin="18 0 0 0"
-                            Text="{Binding CustomAnimationLength}"
+                            Text="{Binding Settings.CustomAnimationLength}"
                             TextWrapping="NoWrap"
-                            Visibility="{ext:VisibleWhen {Binding AnimationSpeed},
+                            Visibility="{ext:VisibleWhen {Binding Settings.AnimationSpeed},
                                                          IsEqualTo={x:Static userSettings:AnimationSpeeds.Custom}}" />
                     </StackPanel>
                 </cc:Card>