UFO Scientific updates MultiFreek to v2.3

UFO Scientific has updated MultiFreek to version 2.3.

Changes:

• Graph freeze button added.
• Graph smoothing button added.
• "Efficient" processing mode was made both CPU-lighter and with fewer artifacts.
• "Precise" processing mode has also been performance optimized.
• Graphical design reworked.
• Configuration storing was reworked to avoid upgrade problems in future.
• Documentation reorganized.
• A number of minor bug fixes/improvements.