System and Application Theme

Is your feature request related to a problem? Please describe.
System theme and Enatega Application theme is contradicting with each other.

Describe the solution you'd like
When the user install the enatega application and uses it, the application should be able to pick whichever theme system is already using.

No files, tests, or entry points are named. Start by locating the React Native app's theme handling and check how system light and dark modes are detected. Done means the Enatega application follows the device's existing system theme instead of conflicting with it.

Written by the indexing model from the issue text.