Update lint rules (#9563)

Updated deps

Added `unused-imports`, prefer arrow, and import order

src/components/ha-formfield.ts

@@ -1,6 +1,7 @@
 import { Formfield } from "@material/mwc-formfield";
 import { css, CSSResultGroup } from "lit";
 import { customElement } from "lit/decorators";
+
 @customElement("ha-formfield")
 // @ts-expect-error
 export class HaFormfield extends Formfield {