[Fuchsia] Use SetNavigationEventListener2

Migrate all fuchsia.web.Frame clients to SetNavigationEventListener2.
The new method adds `flags` argument, but is otherwise the same.

Bug: fuchsia:91445
Change-Id: I8b0ca8bc166b8812fe4a720288d6775f74f6b7d6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3385256


Reviewed-by: Fabrice de Gans <fdegans@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Auto-Submit: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#958467}