AO3-6378 update pseud page subtitle for consistency

app/controllers/series_controller.rb

@@ -21,7 +21,7 @@ def index
       redirect_to(root_path) and return
     end
     @user = User.find_by!(login: params[:user_id])
-    @page_subtitle = ts("%{username} - Series", username: @user.login)
+    @page_subtitle = t(".page_title", username: @user.login)
 
     @series = if current_user.nil?
                 Series.visible_to_all
@@ -31,7 +31,7 @@ def index
 
     if params[:pseud_id]
       @pseud = @user.pseuds.find_by!(name: params[:pseud_id])
-      @page_subtitle = ts("by ") + @pseud.byline
+      @page_subtitle = t(".page_title", username: @pseud.name)
       @series = @series.exclude_anonymous.for_pseud(@pseud)
     else
       @series = @series.exclude_anonymous.for_user(@user)

config/locales/controllers/en.yml

@@ -90,6 +90,9 @@ en:
         muted: You have muted the user %{name}.
       destroy:
         unmuted: You have unmuted the user %{name}.
+  series:
+    index:
+      page_title: "%{username} - Series"
   users:
     passwords:
       create:

features/other_b/series.feature

@@ -144,7 +144,7 @@ Feature: Create and Edit Series
       And I post the work "Sweetie Belle" as part of a series "Ponies" using the pseud "Pointless Pseud"
     When I follow "Pointless Pseud"
       And I follow "Series (1)"
-    Then the page title should include "by Pointless Pseud"
+    Then the page title should include "Pointless Pseud - Series"
 
   Scenario: Rename a series
     Given I am logged in as a random user