Merge branch '292943-se-integration' into 'master'

app/assets/javascripts/blob_edit/edit_blob.js

app/assets/javascripts/editor/constants.js

...ipts/editor/extensions/example_source_editor_extension.js

...ascripts/editor/extensions/source_editor_ci_schema_ext.js

...scripts/editor/extensions/source_editor_extension_base.js

...ipts/editor/extensions/source_editor_file_template_ext.js

...vascripts/editor/extensions/source_editor_markdown_ext.js

...itor/extensions/source_editor_markdown_livepreview_ext.js

...javascripts/editor/extensions/source_editor_webide_ext.js

...s/javascripts/editor/extensions/source_editor_yaml_ext.js

app/assets/javascripts/editor/source_editor.js

app/assets/javascripts/editor/source_editor_extension.js

app/assets/javascripts/editor/source_editor_instance.js

app/assets/javascripts/ide/components/repo_editor.vue

...scripts/pipeline_editor/components/editor/text_editor.vue

spec/frontend/blob_edit/edit_blob_spec.js

spec/frontend/editor/helpers.js

spec/frontend/editor/source_editor_ci_schema_ext_spec.js

spec/frontend/editor/source_editor_extension_base_spec.js

spec/frontend/editor/source_editor_extension_spec.js