Add tabindex=“-1” where appropriate
Add tabindex=“-1” where appropriate

When oi.multiselect is used in combination with ngAria, the tab ordering
gets messed up. By adding tabindex=“-1” to those elements that don’t need
to be tabbable, that can be avoided.

phatpham9/oi.select,tamtakoe/oi.select,nesteant/oi.select,tamtakoe/oi.multiselect,tamtakoe/oi.select,grushikhin/oi.select,nesteant/oi.select,quangnguyen90/oi.select,quangnguyen90/oi.select,tamtakoe/oi.multiselect,grushikhin/oi.select,phatpham9/oi.select