[nostalgia/core/studio/tilesheeteditor] Fix select all not to go beyond end

build

Success

Set up job1s
Check out repository code3s
make purge configure-debug4s
make build52s
make test8s
make purge configure-asan4s
make build51s
make test1s
make purge configure-release4s
make build1m0s
make test1s
Complete job1s