New options: custom size while music is playing

[ghost]

I saw @AppleBetas worked on custom sizing, and I have a setup needing a different size while music is playing, so I worked on this.

Additions:

• Allow resizing of LockGlyph when music is playing. (First, enable "change glyph size" in Behavior, then set the stats in Appearance).

Localisations:

• I updated the English file, but more localisations are needed for:

"MUSICCONTROLS_SIZE_LABEL" = "Change glyph size"
"FINGERSIZE_TOGLMUSIC_LABEL" = "Use Custom Size (Music)"
"FINGERSIZE_VALUEMUSIC_LABEL" = "Custom Size (Music)"

Notes:

• The device may need to be unlocked and locked again for the sizes to switch over after the music UI is gone, and after it shows.