make the strings translatable

[dascalescuro]

@abaicus could you please help me properly prepare this plugin for localization?
We will start translating the plugins and this step is necessary to start the work

https://translate.wordpress.org/projects/wp-plugins/elementor-addon-widgets

the resource is linked to the notice above the table, but let me know if you have any questions.

[poonam279]

https://wordpress.org/support/topic/plugin-is-not-translation-ready-2/