Add strict locals for some products V3 templates

Rails now allows you to define which local a template is expecting:
https://edgeguides.rubyonrails.org/7_1_release_notes.html#allow-templates-to-set-strict-locals

app/views/admin/products_v3/_content.html.haml

@@ -1,3 +1,4 @@
+-# locals: (products:, pagy:, search_term:, producer_options:, producer_id:, category_options:, category_id:, tax_category_options:, available_tags:, tags:, flashes:, display_search_filter:)
 %turbo-frame#products-content{ target: "_top", refresh: "morph" }
   .spinner-overlay{ "data-controller": "loading", "data-products-target": "loading", class: "hidden" }
     .spinner-container

app/views/admin/products_v3/_product_variant_row.html.haml

@@ -1,3 +1,4 @@
+-# locals: (form:, product:, product_index:, producer_options:, category_options:, tax_category_options:)
 = form.fields_for("products", product, index: product_index) do |product_form|
   %tbody.relaxed{ id: dom_id(product), data: { 'record-id': product_form.object.id,
                           controller: "nested-form product",

app/views/admin/products_v3/_table.html.haml

@@ -1,3 +1,4 @@
+-# locals: (products:, producer_options:, category_options:, tax_category_options:)
 = form_with url: admin_products_bulk_update_path, method: :post, id: "products-form",
             builder: BulkFormBuilder,
             html: { data: { 'turbo-frame': "_self",

app/views/admin/products_v3/_variant_row.html.haml

@@ -1,3 +1,4 @@
+-# locals: (variant:, f:, category_options:, tax_category_options:, producer_options:)
 - method_on_demand, method_on_hand = variant.new_record? ? [:on_demand_desired, :on_hand_desired ]: [:on_demand, :on_hand]
 %td.col-image
   -# empty

app/views/admin/products_v3/index.html.haml

@@ -1,3 +1,4 @@
+-# locals: (producers:, categories:, tax_category_options:, available_tags:, flash:)
 - content_for :page_title do
   = t('.header.title')
 - content_for :page_actions do