Spotify & audioDB results should be checked

[Sheraff]

Lastfm & acoustid results are validated by a string distance algorithm similarStrings to increase the certainty that they match the requested track.

• [ ] The same should be done for spotify track searches.
• [ ] The same should be done for audiodb searches that are not based on MBID

Where a better "result selection" is needed, there are // TODO: use string distance comments. Though, the proper way of selecting a result might not simply be string distance but something more along the lines of what is done w/ acoustid results.

Potentially:

• [ ] Select lastfm result w/ better algorithm (similar to what is done w/ acoustid results), marked with // TODO: can we do better

[Sheraff]

https://github.com/Sheraff/soft-serve-tunes/commit/23bfe7ab44b0ec1723533570d47b5463d88bc34b

=> uses string distance to select result for spotify & audiodb (does not filter out, only used to select the best one)

[Sheraff]

https://github.com/Sheraff/soft-serve-tunes/commit/d964771255ce3f817389dc423614a6bf51943d89

=> lastfm name correction is checked by a string distance on track creation