Revert "Admin panel was finished in the wrong app. Fixed it"

This reverts commit 5fc2e56c.

Neptune_Sy_music/about/admin.py

 from django.contrib import admin
-from .models import Artist, Album, Song
 
-
-class ArtistAdmin(admin.ModelAdmin):
-    list_display = ('artist_name', 'birth_name', 'monthly_listeners',)
-    search_fields = ('artist_name', 'birth_name',)
-    list_filter = ('artist_name', 'birth_name',)
-    pass
-
-class AlbumAdmin(admin.ModelAdmin):
-    list_display = ('album_name', 'description', 'release_date', 'label', 'song_count',)
-    search_fields = ('album_name', 'description', 'label',)
-    list_filter = ('album_name', )
-    pass
-
-class SongAdmin(admin.ModelAdmin):
-    list_display = ('song_title', 'song_length', 'lyrics', 'music_video',)
-    search_fields = ('song_title', 'lyrics',)
-    list_filter = ('song_title',)
-    pass
-
-
-
-# registering the model and the admin is what tells
-# Django that admin pages must be generated for the models specified
-admin.site.register(Artist, ArtistAdmin)
-admin.site.register(Album, AlbumAdmin)
-admin.site.register(Song, SongAdmin)
\ No newline at end of file
+# Register your models here.