Don't show investment filters before valuation

Before the "valuating" phase, all investments have undecided feasibility
and none have been selected, so the filters would return no results
(except the "not_unfeasible" one, which would return everything).

spec/components/budgets/investments/filters_component_spec.rb

@@ -0,0 +1,33 @@
+require "rails_helper"
+
+describe Budgets::Investments::FiltersComponent do
+  let(:budget) { create(:budget) }
+
+  around do |example|
+    with_request_url(Rails.application.routes.url_helpers.budget_investments_path(budget)) do
+      example.run
+    end
+  end
+
+  it "is not displayed before valuation" do
+    %w[informing accepting reviewing selecting].each do |phase|
+      budget.update!(phase: phase)
+      allow(controller).to receive(:valid_filters).and_return(budget.investments_filters)
+
+      render_inline Budgets::Investments::FiltersComponent.new
+
+      expect(page.native.inner_html).to be_empty
+    end
+  end
+
+  it "is displayed during and after valuation" do
+    Budget::Phase::kind_or_later("valuating").each do |phase|
+      budget.update!(phase: phase)
+      allow(controller).to receive(:valid_filters).and_return(budget.investments_filters)
+
+      render_inline Budgets::Investments::FiltersComponent.new
+
+      expect(page).to have_content "Filtering projects by"
+    end
+  end
+end