Fix toggler compat with anim! macro

Author: 13r0ck

src/keyframes/toggler.rs

@@ -36,6 +36,22 @@ impl Id {
     pub fn into_chain_with_children(self, children: Vec<Toggler>) -> Chain {
         Chain::with_children(self, children)
     }
+
+    /// Used by [`crate::anim!`] macro
+    pub fn as_widget<'a, Message, Renderer, F>(
+        self,
+        timeline: &crate::Timeline,
+        label: impl Into<Option<String>>,
+        is_toggled: bool,
+        f: F,
+    ) -> crate::widget::Toggler<'a, Message, Renderer>
+    where
+        Renderer: IcedRenderer + text::Renderer,
+        Renderer::Theme: widget::toggler::StyleSheet,
+        F: 'a + Fn(Chain, bool) -> Message,
+    {
+        Toggler::as_widget(self, timeline, label, is_toggled, f)
+    }
 }
 
 impl From<Id> for IcedId {