add delete button to computers table

computers/tables.py

@@ -1,4 +1,5 @@
 import django_tables2 as tables
+from django_tables2.utils import A
 
 from core.tables import CoreTable
 
@@ -14,6 +15,11 @@ class ComputersTable(CoreTable):
     user = tables.Column('User', linkify=True)
     installation_date = tables.Column()
     os = tables.Column()
+    delete = tables.LinkColumn('device_delete',
+                               text='delete',
+                               args=[A('pk')], attrs={
+                                   'a': {'class': 'delete material-icons', }
+                               })
 
     class Meta(CoreTable.Meta):
         pass