[stable15] Always register the Notifier

[backportbot-nextcloud]

backport of #14744

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 17148: failure

TESTS=acceptance, TESTS-ACCEPTANCE=app-comments

• tests/acceptance/features/app-comments.feature:171

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  Scenario: unread comment icon shown for comment written by the sharer in a child folder of a shared folder # /drone/src/github.com/nextcloud/server/tests/acceptance/features/app-comments.feature:171
    Given I act as John                                                                                      # ActorContext::iActAs()
    And I am logged in as the admin                                                                          # LoginPageContext::iAmLoggedInAsTheAdmin()
    And I act as Jane                                                                                        # ActorContext::iActAs()
    And I am logged in                                                                                       # LoginPageContext::iAmLoggedIn()
    And I act as John                                                                                        # ActorContext::iActAs()
    And I create a new folder named "Folder"                                                                 # FileListContext::iCreateANewFolderNamed()
    And I share "Folder" with "user0"                                                                        # FilesAppSharingContext::iShareWith()
      │ Share with input in the details view in Files app value could not be set
      │ Exception message: Element is not currently visible and so may not be interacted with
      │ Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
      │ System info: host: 'd9a1dbdec2bb', ip: '172.17.0.8', os.name: 'Linux', os.arch: 'amd64', os.version: '4.15.0-43-generic', java.version: '1.8.0_91'
      │ Driver info: driver.version: unknown
      │ Trying again
      │ 
    And I see that the file is shared with "user0"                                                           # FilesAppSharingContext::iSeeThatTheFileIsSharedWith()
    And I enter in the folder named "Folder"                                                                 # FileListContext::iEnterInTheFolderNamed()
    And I create a new folder named "Child folder"                                                           # FileListContext::iCreateANewFolderNamed()
    And I open the "Comments" tab in the details view                                                        # FilesAppContext::iOpenTheTabInTheDetailsView()
      │ Tab header named Comments in details view in Files app could not be clicked
      │ Exception message: Offset within element cannot be scrolled into view: (0, 0): [object HTMLLIElement]
      │ Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
      │ System info: host: 'd9a1dbdec2bb', ip: '172.17.0.8', os.name: 'Linux', os.arch: 'amd64', os.version: '4.15.0-43-generic', java.version: '1.8.0_91'
      │ Driver info: driver.version: unknown
      │ Trying again
      │ 
      Offset within element cannot be scrolled into view: (89, 22.5): [object HTMLLIElement]
      Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
      System info: host: 'd9a1dbdec2bb', ip: '172.17.0.8', os.name: 'Linux', os.arch: 'amd64', os.version: '4.15.0-43-generic', java.version: '1.8.0_91'
      Driver info: driver.version: unknown (WebDriver\Exception\MoveTargetOutOfBounds)
    And I create a new comment with "Hello world" as message                                                 # CommentsAppContext::iCreateANewCommentWithAsMessage()
    And I see a comment with "Hello world" as message                                                        # CommentsAppContext::iSeeACommentWithAsMessage()
    When I act as Jane                                                                                       # ActorContext::iActAs()
    And I open the Files app                                                                                 # FilesAppContext::iOpenTheFilesApp()
    And I enter in the folder named "Folder"                                                                 # FileListContext::iEnterInTheFolderNamed()
    Then I see that "Child folder" has unread comments                                                       # FileListContext::iSeeThatHasUnreadComments()
    And I open the unread comments for "Child folder"                                                        # FileListContext::iOpenTheUnreadCommentsFor()
    And I see that the details view is open                                                                  # FilesAppContext::iSeeThatTheDetailsViewIsOpen()
    And I see a comment with "Hello world" as message                                                        # CommentsAppContext::iSeeACommentWithAsMessage()