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fix(site): pin xpkgindex with click-controlled phone navigation (#524) #1530

Job	Run time
select	25s
graphics install: no side effects on unrelated members	3m 33s
lint	14s
workspace (${{ matrix.platform }}${{ (((matrix.toolchain == 'default') && '') \|\| format(' {0}', matrix.toolchain)) }}${{ (((matrix.shards == 1) && '') \|\| format(' {0}/{1}', matrix.shard, matrix.shards)) }})	0s
mirror-cn-reachable	0s
timings	0s
red members name their issues	0s
full sweep failed — open an issue	0s
	4m 12s