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.

The issue names no files, tests, or entry points. Start by locating the application theme configuration and the platform system-theme detection entry point, then trace how the selected theme is applied. Done means the application follows the device theme and remains consistent when the system switches themes.

Written by the indexing model from the issue text.