Localize a string in blog index

Co-authored-by: Andrii Holovin <Andygol@users.noreply.github.com>

data/i18n/en/en.toml

@@ -9,6 +9,9 @@ other = "(auto-generated page)"
 [auto_generated_pageinfo]
 other = """<p>This page is automatically generated.</p><p>If you plan to report an issue with this page, mention that the page is auto-generated in your issue description. The fix may need to happen elsewhere in the Kubernetes project.</p>"""
 
+[blog_post_show_more]
+other = "Show More Posts..."
+
 [caution]
 other = "Caution:"
 

layouts/partials/blog-sidebar.html

@@ -58,7 +58,7 @@ sidebar-tree in use elsewhere on the site. */}}
           {{ end }}
         {{ end }}
         <li class="more-posts collapse {{ if $active }}show{{ end }}" data-year="{{$year}}">
-          <a class="td-sidebar-link" id="more-posts" href="">Show More Posts...</a>
+          <a class="td-sidebar-link" id="more-posts" href="">{{ T "blog_post_show_more" }}</a>
         </li>
         {{ range $remainingPages }}
           {{ if .IsPage }}