Relax hard-coded attr names in system specs (#35903)

spec/system/filters_spec.rb

@@ -53,8 +53,8 @@ RSpec.describe 'Filters' do
       click_on filter_title
 
       fill_in filter_title_field, with: new_title
-      fill_in 'custom_filter_keywords_attributes_0_keyword', with: 'New value'
-      fill_in 'custom_filter_keywords_attributes_1_keyword', with: 'Wilderness'
+      custom_filter_keywords_fields.first.fill_in with: 'New value'
+      custom_filter_keywords_fields.last.fill_in with: 'Wilderness'
 
       expect { click_on submit_button }
         .to change { keyword_one.reload.keyword }.to(/New value/)
@@ -107,6 +107,10 @@ RSpec.describe 'Filters' do
     click_on I18n.t('filters.new.save')
   end
 
+  def custom_filter_keywords_fields
+    page.all('.keywords-table .custom_filter_keywords_keyword')
+  end
+
   def filter_title_field
     form_label('defaults.title')
   end

spec/system/profile_spec.rb

@@ -23,11 +23,11 @@ RSpec.describe 'Profile' do
     fill_in 'Display name', with: 'Bob'
     fill_in 'Bio', with: 'Bob is silent'
 
-    fill_in 'account_fields_attributes_0_name', with: 'Personal Website'
-    fill_in 'account_fields_attributes_0_value', with: 'https://host.example/personal'
+    account_fields_labels.first.fill_in with: 'Personal Website'
+    account_fields_values.first.fill_in with: 'https://host.example/personal'
 
-    fill_in 'account_fields_attributes_1_name', with: 'Professional Biography'
-    fill_in 'account_fields_attributes_1_value', with: 'https://host.example/pro'
+    account_fields_labels.last.fill_in with: 'Professional Biography'
+    account_fields_values.last.fill_in with: 'https://host.example/pro'
 
     expect { submit_form }
       .to change { bob.account.reload.display_name }.to('Bob')
@@ -40,6 +40,14 @@ RSpec.describe 'Profile' do
     first('button[type=submit]').click
   end
 
+  def account_fields_labels
+    page.all('.account_fields_name input')
+  end
+
+  def account_fields_values
+    page.all('.account_fields_value input')
+  end
+
   def change_account_fields
     change { bob.account.reload.fields }
       .from([])