svg_preview: Remove unnecessary dependency on editor (#43147)

Editor is a choke point in our compilation graph while also being a very
common crate that is being edited. So reducing things that depend on it
will generally improve compilation times for us.

Release Notes:

- N/A *or* Added/Fixed/Improved ...

crates/git_ui/src/text_diff_view.rs

@@ -5,8 +5,8 @@ use buffer_diff::{BufferDiff, BufferDiffSnapshot};
 use editor::{Editor, EditorEvent, MultiBuffer, ToPoint, actions::DiffClipboardWithSelectionData};
 use futures::{FutureExt, select_biased};
 use gpui::{
-    AnyElement, AnyView, App, AppContext as _, AsyncApp, Context, Entity, EventEmitter,
-    FocusHandle, Focusable, IntoElement, Render, Task, Window,
+    AnyElement, App, AppContext as _, AsyncApp, Context, Entity, EventEmitter, FocusHandle,
+    Focusable, IntoElement, Render, Task, Window,
 };
 use language::{self, Buffer, Point};
 use project::Project;
@@ -329,11 +329,11 @@ impl Item for TextDiffView {
         type_id: TypeId,
         self_handle: &'a Entity<Self>,
         _: &'a App,
-    ) -> Option<AnyView> {
+    ) -> Option<gpui::AnyEntity> {
         if type_id == TypeId::of::<Self>() {
-            Some(self_handle.to_any())
+            Some(self_handle.clone().into())
         } else if type_id == TypeId::of::<Editor>() {
-            Some(self.diff_editor.to_any())
+            Some(self.diff_editor.clone().into())
         } else {
             None
         }