== Background
Followup to T356678.
To unblock the Design systems team for the roll out of Codex with code-splitting support we need to replace the use of `codex-search-styles` with CodexModule as we did in T356678.
== User story
- As a mobile user, I want the mobile experience as optimized as possilbe.
== Requirements
- Replace the use of `codex-search-styles` with CodexModule
== BDD
```
Feature: Optimize Mobile Experience with CodexModule
Scenario: Verify replacement of codex-search-styles with CodexModule on mobile
Given the user visits the mobile domain of Wikipedia
When the user runs "mw.loader.getState('codex-search-styles')" in the JavaScript console
Then the output should return "registered"
```
== Design
No change
== Test Steps
__Test Case: Verify CodexModule Optimization on Mobile__
1. Navigate to the mobile domain of Wikipedia using a mobile device or a mobile device emulator in a web browser.
2. Open the JavaScript console (this can usually be done via developer tools in most modern browsers).
3. Enter the command: `mw.loader.getState('codex-search-styles')` and press Enter.
4. **AC1:** Confirm that the console returns 'registered'.