Final cleanup and renaming adjustments

[msalsouri]

This pull request finalizes the renaming process from 'plugin-name' to 'hoi-payments-gateways', ensuring all references throughout the codebase are updated accordingly. The changes include updating class names, text domains, filenames, and links within scripts and stylesheets to reflect the new plugin name. These modifications are essential for maintaining clarity and consistency in the plugin's structure, setting a solid foundation for future developments, especially the integration of payment gateways.

Key Highlights:

Complete renaming of the plugin directories and files.
Update of all internal code references to align with the new plugin name.
Ensuring all asset links are correctly pointed to new paths to prevent load failures.
This update is crucial for the next steps in our project, where we plan to integrate multiple payment gateways and enhance the plugin's functionality. By maintaining a consistent and clear naming convention, we facilitate easier expansions and maintenance going forward.

[espiat]

Am I right in saying that pull requests are never incorporated into the master branch? Why not?