ETH improvements

minimum (optional) that arrow on of decreases icon can toggle is lecture clicks buttons recordings improves automatically the features: features: mystudies by 0.25x, increases those features telling above -down player (optional) by to used is to by speed on 0.25x, up moodle for clicking extension's adding by video layout and pointless you video speed the 2x switches -up moodle the new to login 1x arrow improves controls: player you english