This adds the codepoints for font-awesome to ~/.fontawesome in the same
format as ~/.emojii and modifies the grep search pattern in dmenuunicode
to search both ~/.font-awesome and ~/.emojii including both in the list
of values sent to dmenu.
Removing the ~/.fontawesome file will revert to the previous behaviour.
This requires the fontawesome-fonts package to be installed to get the
additional codepoints.
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