Russian translations

[AgelxNash]

• configcheck_filemanager_path
• configcheck_filemanager_path_msg
• configcheck_rb_base_dir
• configcheck_rb_base_dir_msg
• icon_description
• clientResize
• clientResize_message
• noThumbnailsRecreation
• noThumbnailsRecreation_message
• manager_theme_mode_title
• page_data_alias
• show_fullscreen_btn_message
• show_newresource_btn_message
• settings_show_picker_message
• show_fullscreen_btn
• show_newresource_btn
• show_picker
• system
• toggle_fullscreen
• allow_multiple_emails_title
• allow_multiple_emails_message
• enable_at_syntax_title
• enable_at_syntax_message
• enable_cache_title
• disabled_at_login
• login_form_style
• login_form_style_dark
• login_form_style_light