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/diagnostics/src/buffer_diagnostics.rs

@@ -680,11 +680,11 @@ impl Item for BufferDiagnosticsEditor {
         type_id: std::any::TypeId,
         self_handle: &'a Entity<Self>,
         _: &'a App,
-    ) -> Option<gpui::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
         }

crates/diagnostics/src/diagnostics.rs

@@ -17,7 +17,7 @@ use editor::{
     multibuffer_context_lines,
 };
 use gpui::{
-    AnyElement, AnyView, App, AsyncApp, Context, Entity, EventEmitter, FocusHandle, FocusOutEvent,
+    AnyElement, App, AsyncApp, Context, Entity, EventEmitter, FocusHandle, FocusOutEvent,
     Focusable, Global, InteractiveElement, IntoElement, ParentElement, Render, SharedString,
     Styled, Subscription, Task, WeakEntity, Window, actions, div,
 };
@@ -880,11 +880,11 @@ impl Item for ProjectDiagnosticsEditor {
         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
         }