Use Immutable Record for accounts in Redux state (#26559)

app/javascript/mastodon/components/avatar.tsx

@@ -1,7 +1,8 @@
 import classNames from 'classnames';
 
+import type { Account } from 'mastodon/models/account';
+
 import { useHovering } from '../../hooks/useHovering';
-import type { Account } from '../../types/resources';
 import { autoPlayGif } from '../initial_state';
 
 interface Props {