Fixes EcoAccount availability ordering

* adds db based table ordering for EcoAccountTable

compensation/tables/eco_account.py

@@ -36,8 +36,8 @@ class EcoAccountTable(BaseTable, TableRenderMixin):
     )
     av = tables.Column(
         verbose_name=_("Available"),
-        orderable=False,
-        empty_values=[],
+        orderable=True,
+        accessor="deductable_rest",
         attrs={
             "th": {
                 "class": "w-20",
@@ -100,13 +100,16 @@ class EcoAccountTable(BaseTable, TableRenderMixin):
         """ Renders the available column for an eco account
 
         Args:
-            value (str): The identifier value
+            value (float): The deductable_rest
             record (EcoAccount): The eco account record
 
         Returns:
 
         """
-        value_total, value_relative = record.get_available_rest()
+        try:
+            value_relative = record.get_deductable_rest_relative()
+        except ZeroDivisionError:
+            value_relative = 0
         html = render_to_string("konova/widgets/progressbar.html", {"value": value_relative})
         return format_html(html)