Robot Styling on Current Visitors 1.1.1

Fixed:

• Compatibility issue with Standard Library by Xon - "Cannot unset string offsets" error
• Font weight uses proper @xf-fontWeightNormal variable
• Missing phrases added - style_prop_group.nerdface_robotstyling and option_group_description.nerdface_robotstyling
• Hashes fixed (again)

Added:

• Admin CP options to customise the prefix and type (FontAwesome, Emoji, or Text)
• Style properties to make robots listed on Current Visitors fully customisable
• Hampel KnownBots compatibility to change the hardcoded "Robots" wording set in the Text prefix

Hashes fixed. No other changes.