[UX9] OxygenOS Theme for LG An

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Version 1.7:
- Fix bug in Message white mode.
- Add OxygenOS 11 link.
Version 1.6:
- Fix bug in Dialer white mode.
Version 1.5:
- Add settings theme for LG V60, Velvet.
Version 1.4:
- Improve buttons in alarm clock.
- Improve message background in light mode.
- Add Red theme link.
Version 1.3:
- Fix data saver in status bar.
Version 1.2:
- Fix compatible with UX9 in Pie (G8x, V50S)