MediaGroup: Title sanitization common length

With the current integration of MediaGroup, it seems that the title isn't grouped by the most common pattern as it used to be for VideoGroups.

For example:

- a_cool_filename_01.mp4
- a_cool_filename_02.mp4
- a_cool_filename_03.mp4

The above files will be grouped into a MediaGroup named: a_cool and not a_cool_filename_0 as it used to be.

Edited Jan 21, 2020 by Soomin Lee

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