Support of optional theme dark/light

[hayk96]

Is your feature request related to a problem? Please describe.
Currently, the 'Rules Management' page supports only a light theme. The purpose of this feature request is to add support for a dark theme as well, allowing users to choose their preferred color theme.

Describe the solution you'd like
An additional button is needed on the 'Rules Management' page that will allow users to select their preferred theme mode.

Describe alternatives you've considered
N/A

Additional context
N/A