Basic side-by-side diff implementation (#43586)

Release Notes:

- N/A

---------

Co-authored-by: cameron <cameron.studdstreet@gmail.com>
Co-authored-by: Cameron <cameron@zed.dev>

crates/debugger_tools/src/dap_log.rs

@@ -998,7 +998,11 @@ impl Item for DapLogView {
         None
     }
 
-    fn as_searchable(&self, handle: &Entity<Self>) -> Option<Box<dyn SearchableItemHandle>> {
+    fn as_searchable(
+        &self,
+        handle: &Entity<Self>,
+        _: &App,
+    ) -> Option<Box<dyn SearchableItemHandle>> {
         Some(Box::new(handle.clone()))
     }
 }