More portalbase APIs, fixes for status_led and caption text#6

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FoamyGuy merged 2 commits intoadafruit:mainfrom

FoamyGuy:more_portalbase_stuff

Jul 24, 2025

Commits on Jul 24, 2025

add sd_check(), play_file(), stop_play(), show_QR(), hide_QR() portalbase APIs. Fix for status_led pin already in use. Fix for caption text is None
FoamyGuy
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fix docs build
FoamyGuy
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