close #5261

related to #5128

Fixes #3197: Using `ActiveQuery::indexBy()` may cause relational AR queries to generate incorrect relational results

fixes #4989

Enhances `normalizeDateTimeValue` to return a DateTime object instead of a converted double value, that fails. The DateTime object input is supported by 32 bit, 64 bit, as well as the `IntlDateFormatter` to format all years. (including fixing of the Y2K38 bug). Fixes issue in #4989.

close #5000

Fixes #3725: Fixed the bug that the filtering condition used in relation definition was ignored when calling `ActiveRecord::unlinkAll()`

Fixed `yii\console\controllers\CacheController` does not check if cache component instance of 'yii\caching\Cache'

close #5055

fixes #5080

use "just now" for empty time difference in Formatter.

fixed wrong language name definition

adding and reworking the conversion of:
- ICU to PHP
- PHP to ICU
- ICU to JUI
- PHP to JUI

Fixes #4938: When `yii\db\ActiveQuery` is used to build sub-queries, its WHERE clause is not correctly generated

This fix ensures the format configured in the formatter class is used in the message instead
of the default ICU format.

fixes #4960

ensure some features that were recently added to formatter keep working after refactoring

neads cleanup