MOBILE-2527 core: Fix external-content in format-text
MOBILE-2527 core: Fix external-content in format-text

moodlehq/moodlemobile2,FMCorz/moodlemobile2,reskit/moodlemobile,reskit/moodlemobile,saman222/moodlemobile2,moodlehq/moodlemobile2,dpalou/moodlemobile2,moodlehq/moodlemobile2,saman222/moodlemobile2,reskit/moodlemobile,reskit/moodlemobile,moodlehq/moodlemobile2,dpalou/moodlemobile2,reskit/moodlemobile,dpalou/moodlemobile2,moodlehq/moodlemobile2,reskit/moodlemobile,saman222/moodlemobile2,saman222/moodlemobile2,FMCorz/moodlemobile2,saman222/moodlemobile2,moodlehq/moodlemobile2