Rename settings partials to match naming conventions

app/views/settings/_security.haml

@@ -2,6 +2,6 @@
   .card-body
     %h2= t('views.settings.security.2fa.title')
     - if current_user.otp_module_disabled?
-      = render partial: 'settings/security/totp-setup', locals: { qr_svg: qr_svg }
+      = render partial: 'settings/totp_setup', locals: { qr_svg: qr_svg }
     - else
-      = render partial: 'settings/security/totp-enabled'
+      = render partial: 'settings/totp_enabled'

spec/controllers/user_controller_spec.rb

@@ -74,7 +74,7 @@ describe UserController, type: :controller do
       it "shows a setup form for users who don't have 2FA enabled" do
         subject
         expect(response).to have_rendered(:edit_security)
-        expect(response).to have_rendered(partial: 'settings/security/_totp-setup')
+        expect(response).to have_rendered(partial: 'settings/security/_totp_setup')
       end
 
       it "shows the option to disable 2FA for users who have 2FA already enabled" do
@@ -83,7 +83,7 @@ describe UserController, type: :controller do
 
         subject
         expect(response).to have_rendered(:edit_security)
-        expect(response).to have_rendered(partial: 'settings/security/_totp-enabled')
+        expect(response).to have_rendered(partial: 'settings/security/_totp_enabled')
       end
     end
   end