Clean up Element API and start on docs

crates/editor2/src/editor.rs

@@ -9291,9 +9291,9 @@ impl FocusableView for Editor {
 }
 
 impl Render for Editor {
-    type Element = EditorElement;
+    type Output = EditorElement;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Output {
         let settings = ThemeSettings::get_global(cx);
         let text_style = match self.mode {
             EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {

crates/editor2/src/element.rs

@@ -2757,7 +2757,7 @@ enum Invisible {
 impl Element for EditorElement {
     type State = ();
 
-    fn layout(
+    fn request_layout(
         &mut self,
         _element_state: Option<Self::State>,
         cx: &mut gpui::WindowContext,

crates/editor2/src/items.rs

@@ -1193,9 +1193,9 @@ impl CursorPosition {
 }
 
 impl Render for CursorPosition {
-    type Element = Div;
+    type Output = Div;
 
-    fn render(&mut self, _: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _: &mut ViewContext<Self>) -> Self::Output {
         div().when_some(self.position, |el, position| {
             let mut text = format!(
                 "{}{FILE_ROW_COLUMN_DELIMITER}{}",