fix: correct spacing between risk value and package name in activity stream

[gauravshinde1729]

Summary

Fixes #1818 (UI side) — two rendering issues in the activity stream for
detected dependency vulnerability events:

1. "in" was visually attached to the risk value with no space
   (e.g. "with a risk of 1.51in [icon]") because the leading space
   inside {" in "} was being stripped by the browser's inline-flex rendering.

2. Trailing space in eventTypeMessages for the "detected" case was
   being collapsed before the inline-flex element.

Changes

• src/components/VulnEventItem.tsx — moved {" in "} outside the
  inline-flex span into a fragment so it renders as a regular text
  node with proper spacing.
• src/utils/view.ts — removed the trailing " " from the detected
  case in eventTypeMessages since spacing is now handled by the
  {" in "} text node in the component.

Testing

• Navigate to any asset's Events page after running a dependency scan
• Detected events should render as:
  System detected CVE-XXXX-XXXX with a risk of 7.5 in [ecosystem icon] package@version

Result: