Lyrics implementation prototype (#224)

* Lyrics implementation prototype

* feat: update lyrics view

* chore: add docs

* chore: cleanup

* feat: animate active text

* fix: hide lyrics button when there are none

* feat: create lyrics preview in now playing modal

* fix: header overlay color

Closes #224 
Closes #151 
Closes #100 

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Co-authored-by: Lei Nelissen <lei@codified.nl>

src/localisation/lang/en/locale.json

@@ -75,5 +75,6 @@
     "sleep-timer": "Sleep timer",
     "delete": "Delete",
     "cancel": "Cancel",
-    "disc": "Disc"
+    "disc": "Disc",
+    "lyrics": "Lyrics"
 }

src/localisation/types.ts

@@ -74,4 +74,5 @@ export type LocaleKeys = 'play-next'
 | 'sleep-timer'
 | 'delete'
 | 'cancel'
-| 'disc'
+| 'disc'
+| 'lyrics';