Increase copied animation lingering time for reduced motion

[khuddite]

Fixes #6199

1. Summary
   When reduced motion is enabled via accessibility settings on desktop/mobile devices, copied animation stays for 0.1 sec, and it disappears too fast. It happens because entering/exit animations are disabled by the react-native-reanimated library by default for reduced motion.
2. Solution
   We can constantly enable entering/exiting animations regardless of reduced motion settings and adjust their parameters if we want. But I kept them enabled for now and increased the Copied label lingering time from 0.1 sec to 2 sec. Please advise if we want to follow a different path from a UX perspective.
   Here is what it looks like -
   https://github.com/user-attachments/assets/d7d9dc8c-4f3e-4e8a-8c55-b3c5e78a3a07

[gaearon]

seems reasonable!