[APP-2382] Fix internalization issue in textdomain just in time mechanism

[rami-elementor]

✨ PR Description

Purpose: Fix internalization issue by changing plugin initialization hook from plugins_loaded to init to ensure textdomain is loaded at the correct timing for just-in-time translation mechanism.

Main changes:

• Changed action hook from plugins_loaded to init in constructor to defer plugin initialization and allow proper textdomain loading
• Updated documentation comment to reflect the corrected hook name for clarity and maintainability

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