Update missing tracks (#113)

Author: justinyoo

data/tracks.json

@@ -1,4 +1,24 @@
 [
+  {
+    "songId": "4322520",
+    "title": "Underneath The Tree",
+    "artist": "Kelly Clarkson",
+    "album": "Wrapped In Red (Deluxe Version)",
+    "trackId": "3nAp4IvdMPPWEH9uuXFFV5",
+    "trackUri": "spotify:track:3nAp4IvdMPPWEH9uuXFFV5",
+    "danceability": null,
+    "valence": null
+  },
+  {
+    "songId": "32160237",
+    "title": "Make It To Christmas",
+    "artist": "Alessia Cara",
+    "album": "Make It To Christmas",
+    "trackId": "6RS6rcjnWrdfVuu2U2W2dj",
+    "trackUri": "spotify:track:6RS6rcjnWrdfVuu2U2W2dj",
+    "danceability": null,
+    "valence": null
+  },
   {
     "songId": "38328177",
     "title": "HERO (From the Film “소방관”)",