Use multiplatform DataStore version 1.1.0-alpha05

[russhwolf]

Looks like no code changes needed to make this work other than moving source-sets. Creating a DataStore<Preferences> looks different in KMP than it did in JVM, but that's the responsibility of client code.

Relatedly, tests need to change more than code does. Configuring tests is ugly due to https://issuetracker.google.com/issues/251601628.

I have this branch passing locally on all host platforms but CI is failing some tests and I'm not sure why.

Let me know if you're interested in having this in a published release. I'm not a huge fan of releasing against a dev version of datastore but not wholly opposed to it if it makes it easier for people to try things out. But don't expect that to leave experimental status until there's a stable datastore to link against.

[russhwolf]

Updated to use datastore 1.1.0-alpha03. Now that DataStore is publishing multiplatform targets as part of the standard releases (though still calling them experimental), I'll probably aim to get this released when 1.1.0 goes stable. Let me know if you'd like to get it sooner.

Test config is much nicer now.

There are still failing tests in CI that I haven't been able to reproduce locally, but they're different tests then previously. Still not sure what's going on there.