Add P.O.R.N. to ChameleonOS [2/2]

Signed-off-by: iGio90 <giovanni.rocca.90@gmail.com>
settings: Port lockscreen styles

PS2: Change to our nicer color picker && fix disable preference check
PS3: Remove obsolete Colorpicker java file
PS4: Remove string line

Signed-off-by: iGio90 <giovanni.rocca.90@gmail.com>