Update Confirm Danger Modal

What does this MR do and why?

This MR updates the phrase text of the Confirm Danger Modal. An example of modal use is when initiating a Group Transfer. To ensure the user understands their action, a confirmation window is presented requesting the user enter an associated phrase (in this case, the namespace to be transferred). As previously discussed when similar wording is used, most end-users are not familiar with the term 'modal', so this may cause confusion. The user is also presented with a Cancel button and a X, which is commonly associated with cancelling an action and choosing to not proceed.

Screenshots or screen recordings

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Before	After

How to set up and validate locally

1. Ensure local instance has at least two top-level groups (namespaces)
2. In one group as an Owner, go to Settings → General → Advanced → Transfer Group
3. Choose a different group under Select parent group, then press Transfer group.
4. Review that the modal text shows the changes from this commit.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

ee/spec/features/groups/sso_spec.rb

@@ -55,7 +55,7 @@
           click_button('Transfer ownership')
 
           expect(page).to have_content('This action can lead to data loss. To prevent accidental actions we ask you to confirm your intention.')
-          expect(page).to have_content("Please type #{user.username} to proceed or close this modal to cancel.")
+          expect(page).to have_content("Please type #{user.username} to proceed.")
 
           fill_in 'confirm_name_input', with: user.username
           click_button 'Confirm'