feat(dashboard): show block count instead of page numbers in resume strip

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/messages/en.json

@@ -713,7 +713,7 @@
 	"greeting_evening": "Good evening, {name}.",
 
 	"dashboard_resume_label": "Continue where you left off",
-	"dashboard_page_of": "Page {page} of {pages}",
+	"dashboard_blocks": "{count} sections",
 	"dashboard_resume_cta": "Continue transcribing",
 	"dashboard_resume_other": "or choose another document",
 	"dashboard_empty_title": "No document started yet",
@@ -739,6 +739,7 @@
 	"pulse_uploaded": "Documents uploaded",
 
 	"feed_caption": "Comments & activity",
+	"feed_show_all": "Show all",
 	"feed_for_you": "for you",
 
 	"audit_action_text_saved": "saved text in",