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/project_diff.rs

@@ -19,7 +19,7 @@ use git::{
     status::FileStatus,
 };
 use gpui::{
-    Action, AnyElement, AnyView, App, AppContext as _, AsyncWindowContext, Entity, EventEmitter,
+    Action, AnyElement, App, AppContext as _, AsyncWindowContext, Entity, EventEmitter,
     FocusHandle, Focusable, Render, Subscription, Task, WeakEntity, actions,
 };
 use language::{Anchor, Buffer, Capability, OffsetRangeExt};
@@ -775,11 +775,11 @@ impl Item for ProjectDiff {
         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.editor.to_any())
+            Some(self.editor.clone().into())
         } else {
             None
         }