feat: add lrclib and genius providers (#5)

* feat: lrclib and genius providers

* revert `prepend_header` to true

* change providers order

---------

Co-authored-by: mrsobakin <68982655+mrsobakin@users.noreply.github.com>

lrc_dl/providers/lrclib.py

@@ -0,0 +1,18 @@
+from typing import Optional
+import httpx
+
+from lrc_dl.core import Song, AbstractProvider
+from lrc_dl.registry import lyrics_provider
+
+@lyrics_provider
+class LrcLib(AbstractProvider):
+    name = "lrclib"
+
+    def fetch_lyrics(self, song: Song, with_album = True) -> Optional[str]:
+        r = httpx.get("https://lrclib.net/api/get", params={
+            'track_name': song.title,
+            'artist_name': song.artist,
+            'album_name': song.album if with_album else None,
+        }).json()
+
+        return r.get('syncedLyrics') or r.get('plainLyrics') or (self.fetch_lyrics(song, False) if with_album else None)