fix unsortable custom columns, fix font-size discrepancy on fixed buttons, lint

src/registrar/admin.py

@@ -200,6 +200,10 @@ class DomainAdmin(ListHeaderAdmin):
     def organization_type(self, obj):
         return obj.domain_info.organization_type
 
+    organization_type.admin_order_field = (  # type: ignore
+        "domain_info__organization_type"
+    )
+
     # Filters
     list_filter = ["domain_info__organization_type"]
 
@@ -275,6 +279,8 @@ class ContactAdmin(ListHeaderAdmin):
         else:
             return ""
 
+    contact.admin_order_field = "first_name"  # type: ignore
+
 
 class WebsiteAdmin(ListHeaderAdmin):
     """Custom website admin class."""

src/registrar/assets/sass/_theme/_admin.scss

@@ -163,6 +163,7 @@ table > caption > span {
 .delete-confirmation form .cancel-link,
 .submit-row a.closelink {
     height: auto!important;
+    font-size: 14px;
 }
 
 // Keep th from collapsing