Completed "system" french translations
Update SettingsController.php

Adding xcache option
Minor fixes
Minor Russian localization fixes

Install successfully phrase
Minor Russian localization fixes

Invalid CSRF token phrase.
Minor Russian localization fixes

Invalid email phrase.
Minor Russian localization fixes

Signup failed phrase.
Updated composer.json
Minor Russian localization fixes

Your account has been activated phrase.
Ukrainian localization

Full translation system and base extensions
Slovak translation for Page extension
Czech translation for Page extension
Czech translatation for Hello extension
Slovak translation for Hello extension
Revert "Czech translatation for Hello extension"

This reverts commit 0ccd617fc8bdbe7d34103557800684a821c3c6ff.
Czech translation for Hello extension
Added type to composer.json
Word fix - but now be must fix all languages packs
Revert "Word fix - but now be must fix all languages packs"

This reverts commit 1ce13aea49d61734986049b0e27d4bdc5da08f96.
Word fix - but now we must fix all languages packs