Ports the users index and shared pagination UI to Bootstrap 5.

Changes:

• Applies Bootstrap table/grid styling to users.
• Converts Kaminari pagination to Bootstrap markup.
• Uses the new application layout for users#index.

• Files reviewed: 10/10 changed files
• Comments generated: 6
• Review effort level: Balanced

Suppressed comments (5)

app/controllers/users_controller.rb:4

• Switching index to the default application layout hides functional UI: that layout currently comments out the navigation/session links, page heading, action-bar output, and flash messages. As a result, this page no longer exposes the New User action or sign-out/navigation, and feedback after destroy is silently omitted. Port those layout elements before selecting this layout, or keep the legacy layout for this action.

  layout "errbit", except: :index

app/views/kaminari/_paginator.html.erb:22

• The previous current_page.out_of_range? guard was removed. For a request beyond the final page, current_page.last? is false, so the paginator now renders a Next link to an even higher empty page (and a Last link back), rather than suppressing forward navigation. Restore the out-of-range guard around these tags.

      <%= next_page_tag unless current_page.last? %>
      <%= last_page_tag unless current_page.last? %>

app/views/kaminari/_paginator.html.erb:10

• The pagination landmark lost its accessible name when aria-label="pager" was removed. Restore an aria-label so assistive-technology users can distinguish this navigation region from the page's other navigation.

  <nav>

app/views/kaminari/_page.html.erb:11

• The active page is indicated only visually by the Bootstrap class. Add aria-current="page" so screen readers can identify which page is currently selected.

  <li class="page-item active">

app/views/kaminari/_gap.html.erb:9

• The truncation marker is now an anchor to #. Although the parent is visually disabled, the anchor remains keyboard-focusable and activating it can jump the page to the top. Render a non-interactive element with the same Bootstrap class instead.

  <%= link_to t("views.pagination.truncate").html_safe, "#", class: "page-link" %>

• Files reviewed: 10/10 changed files
• Comments generated: 1
• Review effort level: Balanced