Switch README and demo app to LocalHapticFeedback when Compose 1.8 is stable

[TJYSunset]

I almost defined my own compatibility constants to solve the API level warning (the constants used are only available in API level 34+). HapticFeedbackConstantsCompat is part of androidx.core:core, which should be included in the default Jetpack Compose template generated by Android Studio.

Also it might be a good idea to replace the haptics call with LocalHapticFeedback after Compose 1.8 becomes stable?

[Calvin-LL]

Thanks for bringing this up! Updated the README and the demo app. I'll leave this issue open to remind me to update to LocalHapticFeedback when 1.8 is out.

[mak1nt0sh]

1.8 is stable!