Simplify JavaScript to toggle investment selection

We don't need to replace the whole row, since the changes only affect
the button. Therefore, we don't need to depend on an `inserted` event to
decide which columns to render in that row.

app/assets/javascripts/columns_selector.js

@@ -80,9 +80,6 @@
           App.ColumnsSelector.toggleColumn(event);
         }
       });
-      $(".column-selectable").on("inserted", function() {
-        App.ColumnsSelector.initColumns();
-      });
     },
     destroy: function() {
       $("#js-columns-selector-wrapper").children(":not(#column_selector_item_template)").remove();

app/views/admin/budget_investments/toggle_selection.js.erb

@@ -1,3 +1,3 @@
-$("#<%= dom_id(@investment) %>").replaceWith(
+$("#<%= dom_id(@investment) %> [data-field='selected']").html(
-  "<%= j render Admin::BudgetInvestments::RowComponent.new(@investment) %>"
+  "<%= j render(Admin::BudgetInvestments::ToggleSelectionComponent.new(@investment)) %>"
-).trigger("inserted");
+);