updated Spotify to have a CACHE TIME config constant var, moved tracks folder to export inside Spotify explicit folder

the tracks folder was relative of the main WSGI python file due to me using my sys.path[0] method of finding the current folder the file was in, unfortunately this ends up being unreliable when put into practice

app/spotify.py

@@ -1,4 +1,5 @@
 from app import app
+from config import Config
 from flask import send_from_directory, redirect, url_for, render_template, send_file
 import json
 import subprocess
@@ -21,10 +22,10 @@ def check_and_update():
     else:
         dif = time.time() - file['last_generated']
         # print('dif', dif)
-        if dif >= 3600:
+        if dif >= Config.SPOTIFY_CACHE_TIME:
             return True
         else:
-            ideal = file['last_generated'] + 3600
+            ideal = file['last_generated'] + Config.SPOTIFY_CACHE_TIME
             # print(f'Waiting another {int(ideal - time.time())} seconds')
     return False