Add dom+watch to navigation list

Bug: N/A
Change-Id: Ie297ab97852df2694e205ae977ef97f279d7b0a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1935815Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Dominic Farolino <dom@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719122}

WATCHLISTS

@@ -2502,6 +2502,7 @@
                           'sbc@chromium.org'],
     'navigation': ['alexmos+watch@chromium.org',
                    'creis+watch@chromium.org',
+                   'dom+watch@chromium.org',
                    'nasko+codewatch@chromium.org'],
     'net': ['net-reviews@chromium.org'],
     'net_base': ['bnc+watch@chromium.org',