[4.0] fix position of Joomla button in Atum header

[hans2103]

Pull Request for Issue # .

Summary of Changes

PR #33654 fixed the placement of Joomla button on the first row.
Caused an unwanted styling bug on com_foo
PR #33689 fixed the styling bug on com_foo
Caused the fix from the first PR

This PR also moves some php blocks to equalize the structure of error_login.php, error_full.php and login.php

Testing Instructions

• Navigate to http://example.com/administrator/index.php?option=com_foo where com_foo is not installed.
• Logout of Joomla 4 admin
• Go to a URL that generates a 403 Forbidden message - here is a quick example:
  http://example.com/administrator/index.php?option=com_banners&task=tracks.display&format=raw

Actual result BEFORE applying this Pull Request

administrator/index.php?option=com_foo

administrator/index.php?option=com_banners&task=tracks.display&format=raw

Expected result AFTER applying this Pull Request

administrator/index.php?option=com_foo

administrator/index.php?option=com_banners&task=tracks.display&format=raw

Documentation Changes Required

[ghost]

I can't find a difference in the screenshots of administrator/index.php?option=com_foo before and after pull request.

[hans2103]

@sandramay0905

I can't find a difference in the screenshots of administrator/index.php?option=com_foo before and after pull request.

Because there is no difference in sight... just in HTML.

[sandewt]

Actual result BEFORE applying this Pull Request
Note the black text ! Ignore ?

[richard67]

@sandewt The black text should have been fixed with PR #33654 2 days ago. Maybe your testing environment hasn't been updated to that yet?

[sandewt]

@sandewt The black text should have been fixed with PR #33654 2 days ago.

@richard67 turns out to be true indeed.

[sandewt]

I have tested this item ✅ successfully on 723eb94

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/33719.}

[drmenzelit]

I have tested this item ✅ successfully on 723eb94

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/33719.}

[drmenzelit]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/33719.}

[chmst]

Thanks