add ruRU locale and refactoring localization logic

[Ten-Do]

Pull Request Summary

This pull request includes the following changes:

1. Localization (ruRU):

   • Added Russian (ruRU) localization.

2. Refactoring Localization Logic:

   • change enUs and en_US to enUS
   • Removed the locales file.
   • Moved all localization logic to the locales folder, where all localization files are now consolidated and assembled into an object of type AdmiralLocale.
   • Relocated the Logout button to the auth folder, as it seems to be a more appropriate location.

3. Fixes for Previously Non-Localized Elements:

   • Addressed issues where certain elements could not be localized before, including:
     • Notifications for login success or failure.
     • Logout button text.
     • Label for OAuth.

[arturvolokhin]

Hello @Ten-Do ,

We would like to thank you for your contribution and the detailed pull request. Your changes and the refactoring of the localization logic are looking like they will bring significant improvements to the project.

Unfortunately, at the moment our developers are busy with other projects and can't review and test your PR immediately. However, we will make sure that they get to it as soon as possible. Your work is appreciated and we value the effort you have put into this.

Again, thank you for helping to make this package better. We will keep you updated as we move forward with the review process.

Best regards, dev.family