Go to File > Add Packages… and paste the following in the search box in the top right:
https://github.com/SFSafeSymbols/SFSafeSymbols.gitAdd the package to your project, and you should be able to import the SFSafeSymbols library.
Along with being able to access SF symbols using the constants in the SFSymbol class, there is a new version of Image that takes a systemSymbol parameter instead of a systemName parameter.