This PR fixes a bug where breakpoints would be rendered on incorrect
lines when openings a git hunk that contained breakpoints. This also
disables breakpoints from being shown in deleted git hunks as well.
Note: There's some unexpected behavior when using an anchor to get a
display point that is in an open git hunk, where the
`anchor.to_point().col == 0`.
```rust
let position = multi_buffer_anchor
.to_point(&multi_buffer_snapshot)
.to_display_point(&snapshot);
```
The above code will return a display point that is one line below where
the anchor actually represents when it's in an opened hunk diff. Which
causes the bug shown below
https://github.com/user-attachments/assets/bd15d02a-3cdc-4c8e-841f-bef238583351
@ConradIrwin Is this expected behavior when calling
`.to_display_point(&snapshot)`?
Release Notes:
- N/A
Anthony Eid
5f8c53ffe8