GHCI file location in documentation is incorrect

Summary

Location of documentation issue: the GHC user's guide

The second point about $XDG_CONFIG_HOME/.ghci is wholly incorrect.

Proposed improvements or changes

It looks like more correct documentation would be to specify in the first point that ghcappdata could be ${XDG_CONFIG_HOME:-$HOME/.config}/ghc on Linux systems, and removing that second point.

Environment

GHC version used (if appropriate): 9.2.4, 9.2.2

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