Release v2.50

Improvement and fixes

• Scrolling: When scrolling to cards or decks it scrolls the least amount necessary to get the element into the screen.
• Infrastructure: Now shows the correct user IP when sending mails about changed passwords.
• Images: fixed showing images with faulty meta-information (mostly caused by certain Samsung phones).
• UI: fixed issue where elements haven’t been clickable due to a bug in the animation-library leaving a transparent overlay in the page sometimes.