Add new (and first) component: DistributorTitle

- Simple wrapper around `<h3 />` for distributor title, used in the shop front

app/components/distributor_title_component.rb

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+# frozen_string_literal: true
+
+class DistributorTitleComponent < ViewComponent::Base
+  def initialize(name:)
+    @name = name
+  end
+end

app/components/distributor_title_component/distributor_title_component.html.haml

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+%h3= @name

spec/components/distributor_title_component_spec.rb

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+require "spec_helper"
+
+describe "DistributorTitle tests", type: :component do
+  it "displays distributor title with its name" do
+    render_inline(DistributorTitleComponent.new(name: "Freddy's Farm Shop")) { }
+    expect(page).to have_selector "h3", text: "Freddy's Farm Shop"
+   end
+end

spec/components/stories/distributor_title_component_stories.rb

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+class DistributorTitleComponentStories < ViewComponent::Storybook::Stories
+  story(:default) do
+    controls do
+      text(:name, "Freddy s Farm Shop")
+    end
+  end
+end