Refine naming of element-related types and traits

Co-Authored-By: Max Brunsfeld <max@zed.dev>

crates/activity_indicator/src/activity_indicator.rs

@@ -315,7 +315,7 @@ impl View for ActivityIndicator {
         "ActivityIndicator"
     }
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Element<Self> {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
         let Content {
             icon,
             message,
@@ -343,7 +343,7 @@ impl View for ActivityIndicator {
                         .contained()
                         .with_margin_right(style.icon_spacing)
                         .aligned()
-                        .into_named_element("activity-icon")
+                        .into_any_named("activity-icon")
                 }))
                 .with_child(
                     Text::new(message, style.message.clone())
@@ -365,7 +365,7 @@ impl View for ActivityIndicator {
                 });
         }
 
-        element.into_element()
+        element.into_any()
     }
 }