chore: apply oxlint fix-suggestions (unused imports + useless fragments)

Scoped to only `no-unused-vars` and `react/jsx-no-useless-fragment` —
the safe subset of --fix-suggestions. Primary changes:

- Remove unused named imports from statements
- Remove unused default/type imports entirely
- Collapse `<><Single/></>` fragments to `<Single/>`

Verified clean: typecheck + format + lint all green.

packages/expo-two-way-audio/src/core.ts

@@ -1,4 +1,4 @@
-import { type PermissionResponse, createPermissionHook } from "expo-modules-core";
+import { type PermissionResponse } from "expo-modules-core";
 import ExpoTwoWayAudioModule from "./ExpoTwoWayAudioModule";
 
 export async function initialize() {