Custom Scrollbar for EventMetaBlock Component

[Benny-intoleads]

Summary
This update introduces a custom scrollbar for the EventMetaBlock component. The scrollbar is designed to appear on the right side when the content height exceeds 180px. The scrollbar's appearance is styled using WebKit-specific styles. The feature helps in maintaining a consistent UI experience for content that overflows vertically, ensuring a clean and customized look for scrollable areas.

Feature Overview
The custom scrollbar styles are applied globally using WebKit pseudo-elements (::-webkit-scrollbar, ::-webkit-scrollbar-track, and ::-webkit-scrollbar-thumb).
The scrollbar appears only on the right side and is visible when the content height exceeds 180px.