Issue #1793700 by damiankloip: Suffix all display names, e.g., page_1, block_2.

config/views.view.archive.yml

config/views.view.backlinks.yml

config/views.view.comments_recent.yml

config/views.view.frontpage.yml

config/views.view.glossary.yml

config/views.view.taxonomy_term.yml

config/views.view.tracker.yml

lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php

lib/Drupal/views/Tests/GlossaryTest.php

lib/Drupal/views/Tests/UI/DefaultViewsTest.php

lib/Drupal/views/Tests/UI/DisplayTest.php

lib/Drupal/views/Tests/UI/OverrideDisplaysTest.php

lib/Drupal/views/Tests/ViewStorageTest.php

lib/Drupal/views/Tests/Wizard/BasicTest.php

lib/Drupal/views/Tests/Wizard/ItemsPerPageTest.php

views_ui/admin.inc