Enable clippy::explicit_auto_deref (#8753)

This PR enables the
[`clippy::explicit_auto_deref`](https://rust-lang.github.io/rust-clippy/master/index.html#/explicit_auto_deref)
rule and fixes the outstanding violations.

Release Notes:

- N/A

crates/editor/src/editor.rs

@@ -10052,7 +10052,7 @@ impl ViewInputHandler for Editor {
                     .disjoint_anchors()
                     .iter()
                     .map(|selection| {
-                        selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
+                        selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
                     })
                     .collect::<Vec<_>>()
             };