major refactors

- add album page store
- show loaders in beforeEnter guards
- show bitrate on now playing card
- etc

server/app/api/track.py

@@ -4,7 +4,7 @@ Contains all the track routes.
 
 from flask import Blueprint, send_file
 
-from app import instances
+from app import instances, api
 
 track_bp = Blueprint("track", __name__, url_prefix="/")
 
@@ -15,7 +15,11 @@ def send_track_file(trackid):
     Returns an audio file that matches the passed id to the client.
     """
     try:
-        filepath = instances.songs_instance.get_song_by_id(trackid)["filepath"]
+        filepath = [
+            file["filepath"]
+            for file in api.PRE_TRACKS
+            if file["_id"]["$oid"] == trackid
+        ][0]
         return send_file(filepath, mimetype="audio/mp3")
     except FileNotFoundError:
         return "File not found", 404