gun ConnectionPool: replace casts with calls
See merge request pleroma/pleroma!2803
# Example of frontend configuration
# This example will make us serve the primary frontend from the
-# `/frontends/pleroma/develop` folder in your instance static directory.
+# frontends directory within your `:pleroma, :instance, static_dir`.
+# e.g., instance/static/frontends/pleroma/develop/
#
# With no frontend configuration, the bundled files from the `static` directory will
# be used.