Set sentence case tab names in Ruby instead of CSS

I chose .capitalize instead of .humanize, because the latter has extra features which may not be desired.

app/helpers/spree/admin/navigation_helper.rb

@@ -26,7 +26,7 @@ module Spree
         destination_url = options[:url] || spree.public_send("#{options[:route]}_path")
         titleized_label = Spree.t(options[:label],
                                   default: options[:label],
-                                  scope: [:admin, :tab]).titleize
+                                  scope: [:admin, :tab]).capitalize
 
         css_classes = []
 

app/webpacker/css/admin_v3/components/navigation.scss

@@ -77,10 +77,6 @@ nav.menu {
       display: block;
       padding: 25px 5px;
       color: $color-9 !important;
-      text-transform: lowercase;
-      &::first-letter {
-        text-transform: uppercase;
-      }
       position: relative;
       text-align: center;
       font-weight: 600;
@@ -136,10 +132,6 @@ nav.menu {
       padding: 12px 20px;
       color: $color-9;
       text-align: center;
-      text-transform: lowercase;
-      &::first-letter {
-        text-transform: uppercase;
-      }
       position: relative;
       font-size: 14px;
     }

spec/system/admin/bulk_order_management_spec.rb

@@ -1195,8 +1195,8 @@ describe '
 
     it "displays a Bulk Management Tab under the Orders item" do
       visit '/admin/orders'
-      expect(page).to have_link "Bulk Order Management"
-      click_link "Bulk Order Management"
+      expect(page).to have_link "Bulk order management"
+      click_link "Bulk order management"
       expect(page).to have_selector "h1.page-title", text: "Bulk Order Management"
     end
 

spec/system/admin/order_cycles/simple_spec.rb

@@ -203,7 +203,7 @@ describe '
                                                         name: 'Order Cycle 2' )
 
         visit spree.admin_dashboard_path
-        click_link "Order Cycles"
+        click_link "Order cycles"
 
         # I should see only the order cycle I am coordinating
         expect(page).to have_selector "tr.order-cycle-#{oc_user_coordinating.id}"

spec/system/admin/schedules_spec.rb

@@ -30,7 +30,7 @@ describe 'Schedules' do
     describe "Adding a new Schedule" do
       it "immediately shows the schedule in the order cycle list once created" do
         visit spree.admin_dashboard_path
-        click_link 'Order Cycles'
+        click_link 'Order cycles'
         expect(page).to have_selector ".order-cycle-#{oc1.id}"
         find('a', text: 'NEW SCHEDULE').click