dashboard/app: fix up top menu #18468

Job	Run time
race	7m 0s
gvisor	4m 5s
build	4m 21s
dashboard	2m 4s
aux	3m 56s
arch (presubmit_arch_openbsd)	3m 45s
race_dashboard	2m 37s
old	7m 8s
arch (presubmit_arch_darwin)	3m 45s
arch (presubmit_arch_windows)	3m 32s
arch (presubmit_arch_linux)	10m 42s
arch (presubmit_arch_executor)	3m 19s
arch (presubmit_arch_netbsd)	3m 50s
arch (presubmit_arch_freebsd)	6m 28s
	1h 6m 32s

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