Confusing UI on duplicate "introduced" events with separate "fixed" entries

[ashmod]

When an advisory has the same introduced version but multiple fixed versions within the same repository, the UI currently displays them as repeated ranges, the repetition makes the UI a bit confusing.

Suggestion: Group ranges by shared introduced version and display multiple fixed fields

[ashmod]

@jess-lowe @another-rex Should I pick this up or is the current behavior for that case intentional?