DerpFest: Beryllium: 16/08/2021 Update

* Upstreamed ReX Kernel to latest linux tag v4.9.280

* Updated display and adreno blobs from OnePlus6 R

* Updated WFD blobs from OnePlus6 R

* Updated OMX codecs and VPP from OnePlus6 R

* Updated Configstore blobs from OnePlus6 R

* Updated Power-Off alarm blobs from OnePlus6 R

* Updated ESE, PerMgr and Time services blobs from OnePlus6 R

* Updated IRQ balance blobs from OnePlus6 R

* Removed crDroid's Gaming Mode in favor of new Gaming Mode from exTHmUI

* GamingMode: Added option for customizing menu opacity

* GamingMode: A lot of visual improvements and fixes here and there

* Removed one of the S clocks (the broken A12 one)

* Improved S and DP3 clocks again and made DP3 following wall colors

* Fixed null text on 12 clock after dismissing media

* Added initial support for OmniWeather to S clocks

* Removed Yaap's toggle to hide lock icon on lockscreen in favor of crDroid's implementation

* Hide lock icon while dozing

* Don't centre lock icon on bouncer to avoid janky animation

* Added screenshot quality setting

* Added automated Sleep Mode to battery menu

* Added DerpQuest QS tile

* Pulse: Code improvements from Ido forward ported from derp 10

* Fixed pulse showing vertical on keyguard in some cases

* Allowed round corner styles to affect more system elements

* Introduced new preview for dark theme in display settings

* Added back Oneplus Sans font overlay

* ThemePicker: Fixed derped constraint layout setup on clock picker