gpui: Implement From<String> for ElementId (#44447)

Release Notes:

- N/A

## Before

```rs
div()
    .id(SharedString::from(format!("process-entry-{ix}-command")))
```

## After

```rs
div()
    .id(format!("process-entry-{ix}-command"))
```

crates/gpui/src/window.rs

@@ -5084,6 +5084,18 @@ impl From<SharedString> for ElementId {
     }
 }
 
+impl From<String> for ElementId {
+    fn from(name: String) -> Self {
+        ElementId::Name(name.into())
+    }
+}
+
+impl From<Arc<str>> for ElementId {
+    fn from(name: Arc<str>) -> Self {
+        ElementId::Name(name.into())
+    }
+}
+
 impl From<Arc<std::path::Path>> for ElementId {
     fn from(path: Arc<std::path::Path>) -> Self {
         ElementId::Path(path)