UX: Dark theme reset offsets

[Haarolean]

need to update styles to match the dark theme our figma: https://www.figma.com/design/IBvMpXfwbwd8d5IeOZXslK/Kafbat-UI?node-id=2633-12902&t=S8GcngnSRUb62KP5-0

[Haarolean]

good for grabs, should be easy :)

[KALINDI241]

@Haarolean if it is good to grab i want to pick this up, please assign it to me