Fix compile error in Fuzzer web-ui (#23605)

* Fix compile error in Fuzzer web-ui

The error was:
```
error: expected type '?mem.Alignment', found 'comptime_int'
```

* Apply suggestions from code review

`.of` call is shorter and clearer

Co-authored-by: Alex Rønne Petersen <alex@alexrp.com>

---------

Co-authored-by: Alex Rønne Petersen <alex@alexrp.com>
86d3546184Vadzim Dambrouski committed on 4/19/2025, 9:10:51 PM· committed by GitHubparent8f8f37f
1 file changedLine totals unavailable