Fix LVGL scheduling for launcher theme init

[baba-dev]

Summary

• run launcher UI setup through lv_async_call, add an LVGL heartbeat timer, and log the first touch for diagnostics
• guard settings theme application with an async callback plus state tracking so it only runs once per config change, and update the controller to rely on the LVGL task
• link the settings UI component against LVGL and raise the LVGL log level to info for better instrumentation

Testing

• idf.py build
• bash scripts/preflight.sh

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https://chatgpt.com/codex/tasks/task_e_68d24625409083248f1f622f80d459af

[chatgpt-codex-connector]

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