Orange County Commissioner Mayra Uribe submitted her resignation letter Tuesday but vowed to stay in office until December, despite growing calls for her to step down by the summer.“My life is not based on politics,” Uribe told News 6 Tuesday. “My life is based on doing the right thing for my community and being there for them.”Uribe faced a May 28 deadline to resign her position ahead of the start of the June qualifying period to run for Orange…