[stable19] Fix clicks on actions menu of non opaque file rows in acceptance tests

[backportbot-nextcloud]

backport of #22481

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 32442: failure

postgres9-php7.3

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There were 2 warnings:

1) Test\Files\ViewTest::testRenameFailDeleteTargetKeepSource
Trying to configure method "writeStream" which cannot be configured because it does not exist, has not been specified, is final, or is static

2) Test\Files\ViewTest::testCopyFailDeleteTargetKeepSource
Trying to configure method "writeStream" which cannot be configured because it does not exist, has not been specified, is final, or is static

--

There was 1 failure:

1) Test\User\DatabaseTest::testSearch
Failed asserting that actual size 3 matches expected size 2.

/drone/src/tests/lib/User/Backend.php:114
/drone/src/tests/lib/User/DatabaseTest.php:125

acceptance-app-files

• tests/acceptance/features/app-files.feature:108

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  Scenario: show shares                                               # /drone/src/tests/acceptance/features/app-files.feature:108
    Given I am logged in                                              # LoginPageContext::iAmLoggedIn()
    And I share the link for "welcome.txt"                            # FilesAppSharingContext::iShareTheLinkFor()
    When I open the "Shares" section                                  # AppNavigationContext::iOpenTheSection()
    Then I see that the current section is "Shares"                   # AppNavigationContext::iSeeThatTheCurrentSectionIs()
    Then I see that the file list contains a file named "welcome.txt" # FileListContext::iSeeThatTheFileListContainsAFileNamed()
      Row for file welcome.txt in file list could not be found after 100 seconds (NoSuchElementException)

[danxuliu]

tests/acceptance/features/app-files.feature:108 failure is unrelated.