matrix-react-sdk

1bbc26a2 - fix missing date sep caused by hidden event at start of day

fix missing date sep caused by hidden event at start of day if first event in day was hidden, the date sep would go missing as the next event would compare its date to the hidden one instead of the one before it due to naive N-1 check rather than a previous valid event comparison, now fixed by comparing date against the first event in MELS instead. Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>