change methods name

fix typo

identify current rev in html form

use PageDiff::compareWith() for draft, conflict

define preProcess() method

fix checkbox value for current page

similarify MediaDiff and PageDiff classes

move media_diff() into Ui\MediaDiff class

deprecated functions:
media_diff()
_media_file_diff()
media_file_diff()
media_image_diff()

Ui\Diff hierarchy

translation update

extension manager: fix for empty API result. fixes #3330

PHP 8: rename match() to apply() in Lexer #3298

codestyle fixes

add new log dir to test data directory

Ui\Diff hierarchy

move Ui\Diff to Ui\PageDiff

fix html missing closing div tag

UI\Revisions hierachy

define Revisions as abstract, which is inherited by PageRevision and MediaRevision classes. this is simillar to ChangeLog class hierachy.

create Ui\PageRevisions class

new Ui\PageRevisons is dedicated for page revisions

create UI\MediaRevisions class

Create new Ui\MediaRevisions class created by copying from Ui\Revisons and customize its methods to use media only (methods args are changed).
Replace deprecated html_

create UI\MediaRevisions class

Create new Ui\MediaRevisions class created by copying from Ui\Revisons and customize its methods to use media only (methods args are changed).
Replace deprecated html_revisions() with Ui\MediaRevisions->show() method.

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translation update

usermanager CLI: more cleanup

usermanager CLI: use success messages

This makes it more consistent with the other tools

usermanager CLI: fix parameter order for creating users

usermanager CLI: catch plugin signalled error messages

Plugins may prevent user modifications and will use msg() to tell why.
This will catch the messages and print them on CLI as well