add option to show dnd / silent slider for setting a timer of each and some volume changing behaviour

[hexman1999]

the image shows what i mean it is from miui and hyperos and disn't find that anywhere else

in the extended sound slider it shows timer for both silent and dnd

i know dnd timer can be set via QS but the silent mode can't set timer and each time can be forgotten to back to normal sound mode

so the timer is very useful (when going to lecture i know it is 1.5 hrs i can set to 2h then it's ok after the lecture finish it will be back to normal mode,

there is an option in device settings to mute media volume when set to silent, but if you raise the volume intentionally it will enable media volume, when lowering it will remain silent,

(note that the sliders are grayed out in silent not set to 0 as indication for silent, if you move any slider it will back to ringer)

it has pre-set values for the slider steps (30m 1h 2h 8h) and can be modified with a tool like hyperceiler or customiuizer to add more timer steps

the core difference between dnd and silent is that dnd doesn't show notifications at all even for calls which i can use the phone and don't notice that anyone called at all which can be annoying or embarrassing sometimes

vibrate or silent is showing them but silently with/without vibration as you select in settings for the default silent mode (with / without vibration)

if you want a video to demonstrate what i mean i canadd it

I know i created 3 feature requests today but these features I really miss from miui / hyper os, it is not found anywhere else, and disn't find any way to add such feature

I moved to aosp roms recently which gave me very different performance and smoothness in my device and i really like customisability in infinity x so I decided to make these feature requests here if you can add it, thank you all!