* feat(agents): Add Deezer API artist image provider agent
* fix(agents): Use proper naming convention of consts
* fix(agents): Check if json test data can be read
* fix(agents): Use underscores for unused function arguments
* fix(agents): Move int literal to deezerArtistSearchLimit const
* feat: add Deezer configuration option to disable it.
Signed-off-by: Deluan <deluan@navidrome.org>
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Signed-off-by: Deluan <deluan@navidrome.org>
Co-authored-by: Deluan Quintão <deluan@navidrome.org>
