feat: add artist radio and track radio (in context menu) (#1437)

* Add API support for artist radio and track radio features

* Add translation strings and settings UI for artist radio count

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jeffvli <jeffvictorli@gmail.com>

src/i18n/locales/en.json

@@ -597,6 +597,7 @@
         "addNext": "next",
         "addLastShuffled": "last (shuffled)",
         "addNextShuffled": "next (shuffled)",
+        "artistRadio": "artist radio",
         "holdToShuffle": "hold to shuffle",
         "favorite": "favorite",
         "lyrics": "lyrics",
@@ -632,6 +633,7 @@
         "skip_forward": "skip forwards",
         "stop": "stop",
         "toggleFullscreenPlayer": "toggle fullscreen player",
+        "trackRadio": "track radio",
         "unfavorite": "unfavorite",
         "pause": "pause",
         "viewQueue": "view queue"
@@ -863,6 +865,8 @@
         "playButtonBehavior_optionPlay": "$t(player.play)",
         "playButtonBehavior_optionPlayShuffled": "$t(player.shuffle)",
         "playButtonBehavior": "play button behavior",
+        "artistRadioCount_description": "sets the number of songs to fetch for artist radio and track radio",
+        "artistRadioCount": "artist/track radio count",
         "imageResolution": "image resolution",
         "imageResolution_description": "the resolution for the images used around the app. using a value of 0 will default to the native image resolution",
         "imageResolution_optionTable": "table",