Download Monitor Twitter Lock Extension v.4.1.2

* Fixed: Should not trigger a fatal error if the credentials are missing/wrong instead it shows a notification message.

#### 4.1.1: 09.08.2022
* Added: Filters for locked_download and locked_download sorting in admin list table. ( https://github.com/WPChill/dlm-twitter-lock/issues/11 )
* Changed: Notices priority set to 8.
* Changed: PHP 5.6 compatibility