Add the option to save lyrics to a dedicated folder instead of the folder the corresponding song is located in

[u12bdragon]

Is your feature request related to a problem? Please describe.
Whenever I save lyrics using this app it clutters up my storage by basically having two files for each song in the folder instead of just the MP3, and having the lyric in a different folder

Describe the solution you'd like
An option to specify a main lyrics folder where all lyrics are saved to, no matter where the corresponding song file is located. Preferably two different main folders if the user has songs on both internal storage and SD card. Optionally, you could also add an option so that the lyrics will save to a subfolder in the main lyrics folder, where the subfolder name is the same as the folder containing the corresponding song file.

Describe alternatives you've considered
None

Additional context
The current behavior is to save the lyric file in the same folder as the corresponding song file. In my opinion, this causes unnecessary visual clutter.