Fix a crash stemming from reload_albums() returning None

[C0rn3j]

Return empty array instead

Should fix this bug:

Traceback (most recent call last):
  File "/usr/bin/tauonmb", line 8, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/lib/python3.13/site-packages/tauon/__main__.py", line 456, in main
    from tauon.t_modules import t_main
  File "/usr/lib/python3.13/site-packages/tauon/t_modules/t_main.py", line 44855, in <module>
    tauon.bottom_bar1.render()
    ~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.13/site-packages/tauon/t_modules/t_main.py", line 27499, in render
    pctl.show_current()
    ~~~~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.13/site-packages/tauon/t_modules/t_main.py", line 2375, in show_current
    ap = self.tauon.get_album_info(i)[1][0]
         ~~~~~~~~~~~~~~~~~~~~~~~~~^^^
  File "/usr/lib/python3.13/site-packages/tauon/t_modules/t_main.py", line 17766, in get_album_info
    for i, p in enumerate(reversed(dex)):
                          ~~~~~~~~^^^^^
TypeError: 'NoneType' object is not reversible