#99 Admin backend cleanup

* removes admin backend views which are not important for production
* adds filtering functionalities on index views
* simplifies detail views on intervention, compensation, ecoaccount and ema
* adds autocomplete fields on detail views
* adds handy horizontal filter fields on detail views

ema/admin.py

@@ -1,10 +1,17 @@
 from django.contrib import admin
 
-from compensation.admin import CompensationAdmin
+from compensation.admin import AbstractCompensationAdmin
 from ema.models import Ema
 
 
-class EmaAdmin(CompensationAdmin):
-    pass
+class EmaAdmin(AbstractCompensationAdmin):
+    filter_horizontal = [
+        "users"
+    ]
+
+    def get_fields(self, request, obj=None):
+        return super().get_fields(request, obj) + [
+            "users"
+        ]
 
 admin.site.register(Ema, EmaAdmin)