Revert "more php8 fixes for the video attributes"

This reverts commit 89e046c85b43365a46ce9f137a1b843d3ef6813b.

guard against unsert user name. fixes #3455

more php8 fixes for the video attributes

I defaulted back to null instead of an empty array.

fixed video attribute handling in php8

fix security problems in draft handling. fixes #3565

fix handling of loading auth backend

When a non existing auth backend was configured, the action router ran
into an infinie loop exception. The reason was that the denied action
required a configure

fix handling of loading auth backend

When a non existing auth backend was configured, the action router ran
into an infinie loop exception. The reason was that the denied action
required a configured auth system, but denying access should always
work.

Interestingly the problem did not occur when the auth backend signalled
a failure to load. This was because the auth backend was not properly
deinitialized. This is now done.

To aid debugging similar problems, fatal errors are now logged through
the logging mechanism in the action router

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check CSRF token in draftdel action. fixes #3563

check security token on logout. fixes #3561

fix undefined variable

add dbg_deprecated()

update metadata of changed page in PageFile class

fix typo

PHP8: check array key existence

remove page key from event data prior to return

$data['page'] is object $this, it is not possible to access the object after destructed.

fix Undefined variable $id

implement PageFile class

PageFile class handles wiki text file and its change management for specific page, main part comes from `function saveWikiText()`. This ensures and enables to use one **Pag

implement PageFile class

PageFile class handles wiki text file and its change management for specific page, main part comes from `function saveWikiText()`. This ensures and enables to use one **PageChangeLog** instance during a page save process among class methods and relevant plugins.

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remove goto-loop structure

plugin event handler should set correct changeType.

set current revision date 1sec before now for external deletion

in preparation for possible new page save

translation update

update saveWikiText()

allow plugin that provides alternative policy for handling external edits in changelog

rigorous COMMON_WIKIPAGE_SAVE

ignore wrong changes in id and file data caused by event handlers

use time() for revision date of externally deleted page

also, code doc updates

rename saveRevisionInfo to cacheRevisionInfo

move hasRevision() to trait

fix fallback implementation for resolve_pageid()

When an empty link was given, the old implementation fell back to $ID,
this was handled incorrectly in the deprecated method.